Finding the Fourth Proportional to 1,022,713.50, 1,534,291.69 and 391,627.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,022,713.50 : 1,534,291.69 = 391,627.31 : x
2. Step 2: Convert to fraction form
   1,022,713.50/1,534,291.69 = 391,627.31/x
3. Step 3: Cross multiply
   1,022,713.50x = 1,534,291.69 × 391,627.31
4. Step 4: Simplify right side
   1,022,713.50x = 600,870,530,166.72
5. Step 5: Solve for x
   x = 600,870,530,166.72/1,022,713.50
6. Step 6: Final answer
   x = 587,525.76