Finding the Fourth Proportional to 708,106.50, 1,062,158.72 and 328,819.82

Step by Step Solution

1. Step 1: Write the proportion equation
   708,106.50 : 1,062,158.72 = 328,819.82 : x
2. Step 2: Convert to fraction form
   708,106.50/1,062,158.72 = 328,819.82/x
3. Step 3: Cross multiply
   708,106.50x = 1,062,158.72 × 328,819.82
4. Step 4: Simplify right side
   708,106.50x = 349,258,839,121.83
5. Step 5: Solve for x
   x = 349,258,839,121.83/708,106.50
6. Step 6: Final answer
   x = 493,229.25