Finding the Fourth Proportional to 838,681.89, 1,157,429.61 and 631,579.50

Step by Step Solution

1. Step 1: Write the proportion equation
   838,681.89 : 1,157,429.61 = 631,579.50 : x
2. Step 2: Convert to fraction form
   838,681.89/1,157,429.61 = 631,579.50/x
3. Step 3: Cross multiply
   838,681.89x = 1,157,429.61 × 631,579.50
4. Step 4: Simplify right side
   838,681.89x = 731,008,814,369.00
5. Step 5: Solve for x
   x = 731,008,814,369.00/838,681.89
6. Step 6: Final answer
   x = 871,616.31