Finding the Fourth Proportional to 1,427,585.18, 1,970,139.71 and 783,065.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,585.18 : 1,970,139.71 = 783,065.34 : x
2. Step 2: Convert to fraction form
   1,427,585.18/1,970,139.71 = 783,065.34/x
3. Step 3: Cross multiply
   1,427,585.18x = 1,970,139.71 × 783,065.34
4. Step 4: Simplify right side
   1,427,585.18x = 1,542,748,123,816.31
5. Step 5: Solve for x
   x = 1,542,748,123,816.31/1,427,585.18
6. Step 6: Final answer
   x = 1,080,669.76