Finding the Fourth Proportional to 607,053.10, 851,118.50 and 607,053.10

Step by Step Solution

1. Step 1: Write the proportion equation
   607,053.10 : 851,118.50 = 607,053.10 : x
2. Step 2: Convert to fraction form
   607,053.10/851,118.50 = 607,053.10/x
3. Step 3: Cross multiply
   607,053.10x = 851,118.50 × 607,053.10
4. Step 4: Simplify right side
   607,053.10x = 516,674,123,892.35
5. Step 5: Solve for x
   x = 516,674,123,892.35/607,053.10
6. Step 6: Final answer
   x = 851,118.50