Finding the Fourth Proportional to 676,404.92, 1,013,499.18 and 410,251.88

Step by Step Solution

1. Step 1: Write the proportion equation
   676,404.92 : 1,013,499.18 = 410,251.88 : x
2. Step 2: Convert to fraction form
   676,404.92/1,013,499.18 = 410,251.88/x
3. Step 3: Cross multiply
   676,404.92x = 1,013,499.18 × 410,251.88
4. Step 4: Simplify right side
   676,404.92x = 415,789,943,973.46
5. Step 5: Solve for x
   x = 415,789,943,973.46/676,404.92
6. Step 6: Final answer
   x = 614,705.68