Finding the Fourth Proportional to 1,039,359.10, 1,560,205.05 and 803,746.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,359.10 : 1,560,205.05 = 803,746.30 : x
2. Step 2: Convert to fraction form
   1,039,359.10/1,560,205.05 = 803,746.30/x
3. Step 3: Cross multiply
   1,039,359.10x = 1,560,205.05 × 803,746.30
4. Step 4: Simplify right side
   1,039,359.10x = 1,254,009,036,178.82
5. Step 5: Solve for x
   x = 1,254,009,036,178.82/1,039,359.10
6. Step 6: Final answer
   x = 1,206,521.44