Finding the Fourth Proportional to 1,517,892.10, 2,279,462.55 and 809,304.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,517,892.10 : 2,279,462.55 = 809,304.10 : x
2. Step 2: Convert to fraction form
   1,517,892.10/2,279,462.55 = 809,304.10/x
3. Step 3: Cross multiply
   1,517,892.10x = 2,279,462.55 × 809,304.10
4. Step 4: Simplify right side
   1,517,892.10x = 1,844,778,387,511.45
5. Step 5: Solve for x
   x = 1,844,778,387,511.45/1,517,892.10
6. Step 6: Final answer
   x = 1,215,355.42