Environmental recovery company RexChem Partners plans to finance a site reclamation project that will require a 4-year cleanup period. If the company borrows $4.1 million now, how much will the company have to get at the end of each six months in order to earn 15% per year, compounded weekly on its investment? Calculate the answer using both formula and spreadsheet function? In order to earn 15% per year compounded weekly on its investment at the end of each six months, the company will have to get $_____________