Finding the Fourth Proportional to 801,412, 1,105,948.56 and 443,739.04

Step by Step Solution

1. Step 1: Write the proportion equation
   801,412 : 1,105,948.56 = 443,739.04 : x
2. Step 2: Convert to fraction form
   801,412/1,105,948.56 = 443,739.04/x
3. Step 3: Cross multiply
   801,412x = 1,105,948.56 × 443,739.04
4. Step 4: Simplify right side
   801,412x = 490,752,552,303.78
5. Step 5: Solve for x
   x = 490,752,552,303.78/801,412
6. Step 6: Final answer
   x = 612,359.88