Finding the Fourth Proportional to 800,775.83, 1,105,092.32 and 490,673.03

Step by Step Solution

1. Step 1: Write the proportion equation
   800,775.83 : 1,105,092.32 = 490,673.03 : x
2. Step 2: Convert to fraction form
   800,775.83/1,105,092.32 = 490,673.03/x
3. Step 3: Cross multiply
   800,775.83x = 1,105,092.32 × 490,673.03
4. Step 4: Simplify right side
   800,775.83x = 542,238,989,105.30
5. Step 5: Solve for x
   x = 542,238,989,105.30/800,775.83
6. Step 6: Final answer
   x = 677,142.06