Finding the Fourth Proportional to 1,086,419.75, 1,499,444.78 and 627,451.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086,419.75 : 1,499,444.78 = 627,451.82 : x
2. Step 2: Convert to fraction form
   1,086,419.75/1,499,444.78 = 627,451.82/x
3. Step 3: Cross multiply
   1,086,419.75x = 1,499,444.78 × 627,451.82
4. Step 4: Simplify right side
   1,086,419.75x = 940,829,345,566.02
5. Step 5: Solve for x
   x = 940,829,345,566.02/1,086,419.75
6. Step 6: Final answer
   x = 865,990.65