Finding the Fourth Proportional to 710,089.92, 979,930.72 and 404,151.28

Step by Step Solution

1. Step 1: Write the proportion equation
   710,089.92 : 979,930.72 = 404,151.28 : x
2. Step 2: Convert to fraction form
   710,089.92/979,930.72 = 404,151.28/x
3. Step 3: Cross multiply
   710,089.92x = 979,930.72 × 404,151.28
4. Step 4: Simplify right side
   710,089.92x = 396,040,254,799.32
5. Step 5: Solve for x
   x = 396,040,254,799.32/710,089.92
6. Step 6: Final answer
   x = 557,732.54