Peter makes a deposit at the end of every three months into a savings account that earns interest at 6.4% compounded semi-annually. He saves for 8 years, and then converts his savings into an annuity...

Extracted text: Peter makes a deposit at the end of every three months into a savings account that earns interest at 6.4% compounded semi-annually. He saves for 8 years, and then converts his savings into an annuity that pays him $380 at the beginning of each months for 7 years at the same interest rate. What size of the deposit Peter makes while he is saving?