Bahij, a young engineer on his 23rd birthday decides to start saving toward building a retirement fund. He feels that $500,000 worth of buying power in terms of todays dollars will be adequate to see her through his sunset years starting at his 63rd birthday. The expected general inflation rate is estimated at 5% per year. The rate of return from savings (market interest rate) is estimated at 15% per year and he expects to make annual end-of-year deposits (with the first deposit on his 23rd birthday and the last on his 63rd) and each subsequent deposit will be 5% more than the previous one. What will be the amount of his last deposit?