Finding the Fourth Proportional to 620,517.89, 929,915.71 and 282,733.04

Step by Step Solution

1. Step 1: Write the proportion equation
   620,517.89 : 929,915.71 = 282,733.04 : x
2. Step 2: Convert to fraction form
   620,517.89/929,915.71 = 282,733.04/x
3. Step 3: Cross multiply
   620,517.89x = 929,915.71 × 282,733.04
4. Step 4: Simplify right side
   620,517.89x = 262,917,897,250.02
5. Step 5: Solve for x
   x = 262,917,897,250.02/620,517.89
6. Step 6: Final answer
   x = 423,707.20