The following information is needed to reconcile the cash balance for Fire Steel Inc

A deposit of $800 is in transit.

Outstanding checks total $11,760

The book balance is $6,800 at February 28, 2013.

The bank balance at February 28, 2013 was $18,000.

A deposit of $400 was credited by the bank for $4,400.

A customer's check for $3,700 was returned for nonsufficient funds.

The bank service charge is $60.

What was the adiusted book balance?