Finding the Fourth Proportional to 801,422.34, 1,105,976.43 and 438,840.42

Step by Step Solution

1. Step 1: Write the proportion equation
   801,422.34 : 1,105,976.43 = 438,840.42 : x
2. Step 2: Convert to fraction form
   801,422.34/1,105,976.43 = 438,840.42/x
3. Step 3: Cross multiply
   801,422.34x = 1,105,976.43 × 438,840.42
4. Step 4: Simplify right side
   801,422.34x = 485,347,161,051.30
5. Step 5: Solve for x
   x = 485,347,161,051.30/801,422.34
6. Step 6: Final answer
   x = 605,607.23