Finding the Fourth Proportional to 1,039,496.10, 1,560,410.55 and 803,883.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,496.10 : 1,560,410.55 = 803,883.30 : x
2. Step 2: Convert to fraction form
   1,039,496.10/1,560,410.55 = 803,883.30/x
3. Step 3: Cross multiply
   1,039,496.10x = 1,560,410.55 × 803,883.30
4. Step 4: Simplify right side
   1,039,496.10x = 1,254,387,982,288.82
5. Step 5: Solve for x
   x = 1,254,387,982,288.82/1,039,496.10
6. Step 6: Final answer
   x = 1,206,726.97