Bank reconciliation

The following data were accumulated for use in reconciling the bank account of Creative Design Co$.$ for August $20$Y$6$:

$1.$Cash balance according to the company's records at August $31,$ $$20,140.$

$2.$Cash balance according to the bank statement at August $31,$ $$21,260.$

$3.$Checks outstanding, $$4,090.$

Deposit in transit not recorded by bank, $$3,280.$

$4.$A check for $$480$ in payment of an account was erroneously recorded in the check register as $$840.$

Bank debit memo for service charges, $$50.$

thanks!