Johnathan wants to make sure that he has saved up enough money prior to the year in which his daughter begins college. Based on current estimates, he figures that college expenses will amount to $440,000 per year for 6 years (ignoring any inflation or tuition increases during the 6 years of college). How much money will Johnathan needs to have accumulated in an account that earns 7.5% per year, just prior to the year that his daughter starts college?