What is the proper fingering for playing a flat dominant 7th chord on the guitar?

The proper fingering for playing a flat dominant 7th chord on the guitar is typically done by placing your index finger on the 1st fret of the high E string, your middle finger on the 2nd fret of the D string, your ring finger on the 2nd fret of the B string, and your pinky finger on the 3rd fret of the G string.