How To Play a C7 Chord on Piano (Left Hand)

How To Play a C7 Chord on Piano (Left Hand). Notes: C E G Bb. Fingering: 5 4 2 1.

[ivanbalashov]

I cannot squeeze 4-5 fingers just to touch the keys, let alone play them cleanly, let alone do it fast.

[xB]

Well, this not good fingering. There is no space between 5 and 4 finger for quick playing D or D#.

[anzatzi]

I can this 5 4 3 2, but I can't get the position shown