A potential investor is seeking to invest $500,000 in a venture, which currently has 1,000,000 million shares held by its founders, and is targeting a 50% return five years from now. The venture is expected to produce half a million dollars in income per year at year 5. It is known that a similar venture recently produced $1,000,000 in income and sold shares to the public for $10,000,000.

What is the number of shares that must be issued to the new investor in order for the investor to earn his target return?

1,578,138

2,578,138

3,156,276

4,156,276