A customer of Lend$-4-$Less, a loan agency, has not been making their agreed upon payments. The payment ter originally consisted of a $$\{A\}$ payment due eleven months ago, a $$\{B\}$ payment due eight months ago, and a payment due three months ago. They have refinanced the loan and will repay it with a single equivalent paym months from now. Interest is $\{E\}\%$ compounded semi$-$annually on all outstanding debts. What is the size of thi equivalent payment?

$\backslash$table$[[\{A\},\{B\},\{C\},\{D\},,\{E\},],[$$$120,$$$240,,$$$530,,18,19\mathrm{.}3\%$