Finding the Fourth Proportional to 1,025,300.79, 1,537,078.77 and 626,221.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025,300.79 : 1,537,078.77 = 626,221.53 : x
2. Step 2: Convert to fraction form
   1,025,300.79/1,537,078.77 = 626,221.53/x
3. Step 3: Cross multiply
   1,025,300.79x = 1,537,078.77 × 626,221.53
4. Step 4: Simplify right side
   1,025,300.79x = 962,551,819,079.92
5. Step 5: Solve for x
   x = 962,551,819,079.92/1,025,300.79
6. Step 6: Final answer
   x = 938,799.45