Finding the Fourth Proportional to 1,380,800.52, 2,070,508.09 and 804,610.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,800.52 : 2,070,508.09 = 804,610.42 : x
2. Step 2: Convert to fraction form
   1,380,800.52/2,070,508.09 = 804,610.42/x
3. Step 3: Cross multiply
   1,380,800.52x = 2,070,508.09 × 804,610.42
4. Step 4: Simplify right side
   1,380,800.52x = 1,665,952,383,908.30
5. Step 5: Solve for x
   x = 1,665,952,383,908.30/1,380,800.52
6. Step 6: Final answer
   x = 1,206,511.99