Finding the Fourth Proportional to 1,435,516.52, 1,981,014.72 and 782,139.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,516.52 : 1,981,014.72 = 782,139.20 : x
2. Step 2: Convert to fraction form
   1,435,516.52/1,981,014.72 = 782,139.20/x
3. Step 3: Cross multiply
   1,435,516.52x = 1,981,014.72 × 782,139.20
4. Step 4: Simplify right side
   1,435,516.52x = 1,549,429,268,289.02
5. Step 5: Solve for x
   x = 1,549,429,268,289.02/1,435,516.52
6. Step 6: Final answer
   x = 1,079,353.14