Finding the Fourth Proportional to 708,128.30, 1,062,506.38 and 371,088.82

Step by Step Solution

1. Step 1: Write the proportion equation
   708,128.30 : 1,062,506.38 = 371,088.82 : x
2. Step 2: Convert to fraction form
   708,128.30/1,062,506.38 = 371,088.82/x
3. Step 3: Cross multiply
   708,128.30x = 1,062,506.38 × 371,088.82
4. Step 4: Simplify right side
   708,128.30x = 394,284,238,796.67
5. Step 5: Solve for x
   x = 394,284,238,796.67/708,128.30
6. Step 6: Final answer
   x = 556,797.74