Smithson Mining operates a silver mine in Nevada. Acquisition, exploration, and development costs totaled $$5\mathrm{.}8$ million. After the silver is extracted in approximately five years, Smithson is obligated to restore the land to its original condition, including constructing a wildlife preserve. The company$$s controller has provided the following three cash flow possibilities for the restoration costs: $(1)$ $$520,000,20\%$ probability; $(2)$ $$570,000,35\%$ probability; and $(3)$ $$670,000,45\%$ probability. The company$$s credit$-$adjusted, risk$-$free rate of interest is $6\%.$

What is the initial cost of the silver mine? Note: Use appropriate factor$($s$)$ from the tables provided. Do not round intermediate calculations. Enter your answers in whole dollars. $($FV of $$1,$ PV of $$1,$ FVA of $$1,$ PVA of $$1,$ FVAD of $$1$ and PVAD of $$1)$