Finding the Fourth Proportional to 1,099,978.00, 1,649,974.35 and 426,134.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099,978.00 : 1,649,974.35 = 426,134.14 : x
2. Step 2: Convert to fraction form
   1,099,978.00/1,649,974.35 = 426,134.14/x
3. Step 3: Cross multiply
   1,099,978.00x = 1,649,974.35 × 426,134.14
4. Step 4: Simplify right side
   1,099,978.00x = 703,110,398,132.38
5. Step 5: Solve for x
   x = 703,110,398,132.38/1,099,978.00
6. Step 6: Final answer
   x = 639,204.06