Finding the Fourth Proportional to 1,105,805.85, 1,526,061.18 and 622,402.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,805.85 : 1,526,061.18 = 622,402.31 : x
2. Step 2: Convert to fraction form
   1,105,805.85/1,526,061.18 = 622,402.31/x
3. Step 3: Cross multiply
   1,105,805.85x = 1,526,061.18 × 622,402.31
4. Step 4: Simplify right side
   1,105,805.85x = 949,823,996,003.02
5. Step 5: Solve for x
   x = 949,823,996,003.02/1,105,805.85
6. Step 6: Final answer
   x = 858,942.82