Finding the Fourth Proportional to 859,111.31, 1,185,598.22 and 477,162.70

Step by Step Solution

1. Step 1: Write the proportion equation
   859,111.31 : 1,185,598.22 = 477,162.70 : x
2. Step 2: Convert to fraction form
   859,111.31/1,185,598.22 = 477,162.70/x
3. Step 3: Cross multiply
   859,111.31x = 1,185,598.22 × 477,162.70
4. Step 4: Simplify right side
   859,111.31x = 565,723,242,420.59
5. Step 5: Solve for x
   x = 565,723,242,420.59/859,111.31
6. Step 6: Final answer
   x = 658,498.19