Answer has three parts:
1) Fingering and hand position
2) Practice technique
3) For those who need to drop a note
Fingering and hand position
Disclaimer: These hand positions are just for this specific chord. Frequent or prolonged stretching and/or twisting risks injury.
You can tuck your thumb either around or over the Db such that you play both it and the middle C.
Arm and hand in relatively neutral, perpendicular position to keyboard.
You can rotate your entire forearm toward the pinky side, bringing your pinky closer to its C and allowing the full use of finger 2's length.
In the release of one chord and placement of the next, the palm of the hand should "draw" a smooth parabola, fingers and arm relaxed and along for the ride. Any distortions of that arc will create problems in the arrival chord. That includes deviations from the path as well as finger or arm adjustments that aren't made as part of the overall movement (e.g., last-moment shifting as you approach or play to target chord).
- Play the first chord and pause to ensure as much relaxation as the chord allows.
- Release in a single fluid motion, beginning a smooth arc toward the next chord. Make sure that your fingers release not just the keys themselves, but the effort used to play them; otherwise, you're still "holding onto" that chord, which will interfere with the next.
- Continue the arc in a smooth descent to the target chord, landing on the keys, but without playing the chord. Make sure you land with fingers, hand, and arm placed just as you want them, with no last-minute adjustments.
- Once you can consistently do steps 1 - 3, then, after a brief pause resting on the target chord at the end of step 3, play the chord.
For those who need to drop a note
Drop the middle C. It's important to hear the upper C as a "bell" on top of each chord, and C is also present in the left hand. Further, the Db is a critical pitch in the right hand, because that's where we most prominently hear the chromatic progression from C-Db-D-Eb.