Finding the Fourth Proportional to 1,039,729.32, 1,434,227.81 and 625,978.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,729.32 : 1,434,227.81 = 625,978.44 : x
2. Step 2: Convert to fraction form
   1,039,729.32/1,434,227.81 = 625,978.44/x
3. Step 3: Cross multiply
   1,039,729.32x = 1,434,227.81 × 625,978.44
4. Step 4: Simplify right side
   1,039,729.32x = 897,795,683,978.52
5. Step 5: Solve for x
   x = 897,795,683,978.52/1,039,729.32
6. Step 6: Final answer
   x = 863,489.82