When Ruby borrowed $2300, she agreed to repay the loan in two equal payments, one in four months and one in six months. If interest is 8.5% on the loan, what is the size of the equal payments if a focal date of today is used?

Be sure to follow the rules of rounding (maintaining 6 decimal places for intermediate calculations) and rounding the final answers to 2 decimal places. Include the $ sign in your answer.