Finding the Fourth Proportional to 1,070,105.12, 1,476,744.72 and 586,659.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070,105.12 : 1,476,744.72 = 586,659.89 : x
2. Step 2: Convert to fraction form
   1,070,105.12/1,476,744.72 = 586,659.89/x
3. Step 3: Cross multiply
   1,070,105.12x = 1,476,744.72 × 586,659.89
4. Step 4: Simplify right side
   1,070,105.12x = 866,346,892,331.82
5. Step 5: Solve for x
   x = 866,346,892,331.82/1,070,105.12
6. Step 6: Final answer
   x = 809,590.45