Rainey Company's true cash balance at October $31$ is $$4,260.$ The

following information is available for the bank reconciliation:

Outstanding checks, $$680$ Deposits in transit, $$510$ Bank service

charges, $$105$ The bank had collected an account receivable for

Rainey Company, $$1,150$ The bank statement included an NSF check

written by one of Ramsey's customers for $$690.$ What was the

unadjusted book balance at October $31?$