Finding the Fourth Proportional to 1,253,028.37, 1,729,180.86 and 680,068.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,253,028.37 : 1,729,180.86 = 680,068.55 : x
2. Step 2: Convert to fraction form
   1,253,028.37/1,729,180.86 = 680,068.55/x
3. Step 3: Cross multiply
   1,253,028.37x = 1,729,180.86 × 680,068.55
4. Step 4: Simplify right side
   1,253,028.37x = 1,175,961,520,147.95
5. Step 5: Solve for x
   x = 1,175,961,520,147.95/1,253,028.37
6. Step 6: Final answer
   x = 938,495.53