Finding the Fourth Proportional to 1,287,419.31, 1,776,227.67 and 743,483.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,287,419.31 : 1,776,227.67 = 743,483.25 : x
2. Step 2: Convert to fraction form
   1,287,419.31/1,776,227.67 = 743,483.25/x
3. Step 3: Cross multiply
   1,287,419.31x = 1,776,227.67 × 743,483.25
4. Step 4: Simplify right side
   1,287,419.31x = 1,320,595,520,831.53
5. Step 5: Solve for x
   x = 1,320,595,520,831.53/1,287,419.31
6. Step 6: Final answer
   x = 1,025,769.55