Finding the Fourth Proportional to 801,223.94, 1,105,689.29 and 438,670.82

Step by Step Solution

1. Step 1: Write the proportion equation
   801,223.94 : 1,105,689.29 = 438,670.82 : x
2. Step 2: Convert to fraction form
   801,223.94/1,105,689.29 = 438,670.82/x
3. Step 3: Cross multiply
   801,223.94x = 1,105,689.29 × 438,670.82
4. Step 4: Simplify right side
   801,223.94x = 485,033,619,787.72
5. Step 5: Solve for x
   x = 485,033,619,787.72/801,223.94
6. Step 6: Final answer
   x = 605,365.86