Finding the Fourth Proportional to 1,435,761.72, 1,981,342.68 and 782,386.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,761.72 : 1,981,342.68 = 782,386.56 : x
2. Step 2: Convert to fraction form
   1,435,761.72/1,981,342.68 = 782,386.56/x
3. Step 3: Cross multiply
   1,435,761.72x = 1,981,342.68 × 782,386.56
4. Step 4: Simplify right side
   1,435,761.72x = 1,550,175,883,586.38
5. Step 5: Solve for x
   x = 1,550,175,883,586.38/1,435,761.72
6. Step 6: Final answer
   x = 1,079,688.82