Finding the Fourth Proportional to 1,039,659.76, 1,434,131.72 and 625,908.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,659.76 : 1,434,131.72 = 625,908.74 : x
2. Step 2: Convert to fraction form
   1,039,659.76/1,434,131.72 = 625,908.74/x
3. Step 3: Cross multiply
   1,039,659.76x = 1,434,131.72 × 625,908.74
4. Step 4: Simplify right side
   1,039,659.76x = 897,635,580,384.93
5. Step 5: Solve for x
   x = 897,635,580,384.93/1,039,659.76
6. Step 6: Final answer
   x = 863,393.60