Finding the Fourth Proportional to 710,105.59, 979,940.73 and 387,815.77

Step by Step Solution

1. Step 1: Write the proportion equation
   710,105.59 : 979,940.73 = 387,815.77 : x
2. Step 2: Convert to fraction form
   710,105.59/979,940.73 = 387,815.77/x
3. Step 3: Cross multiply
   710,105.59x = 979,940.73 × 387,815.77
4. Step 4: Simplify right side
   710,105.59x = 380,036,468,759.31
5. Step 5: Solve for x
   x = 380,036,468,759.31/710,105.59
6. Step 6: Final answer
   x = 535,183.04