Finding the Fourth Proportional to 628,061.34, 866,419.56 and 373,232.10

Step by Step Solution

1. Step 1: Write the proportion equation
   628,061.34 : 866,419.56 = 373,232.10 : x
2. Step 2: Convert to fraction form
   628,061.34/866,419.56 = 373,232.10/x
3. Step 3: Cross multiply
   628,061.34x = 866,419.56 × 373,232.10
4. Step 4: Simplify right side
   628,061.34x = 323,375,591,859.88
5. Step 5: Solve for x
   x = 323,375,591,859.88/628,061.34
6. Step 6: Final answer
   x = 514,879.00