Cody was supposed to pay Christopher $$4,8006$ months ago and $$1,220$ in $5$ months. If he wants to repay this amount with two payments, one today of $$2,600$ and the balance amount in $3$ months, calculate the balance amount. Assume interest is $2\mathrm{.}70\%$ p$.$a$.$ and the agreed focal date is $3$ months from now.