Finding the Fourth Proportional to 1,017,862.89, 1,404,823.55 and 588,391.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017,862.89 : 1,404,823.55 = 588,391.98 : x
2. Step 2: Convert to fraction form
   1,017,862.89/1,404,823.55 = 588,391.98/x
3. Step 3: Cross multiply
   1,017,862.89x = 1,404,823.55 × 588,391.98
4. Step 4: Simplify right side
   1,017,862.89x = 826,586,907,193.17
5. Step 5: Solve for x
   x = 826,586,907,193.17/1,017,862.89
6. Step 6: Final answer
   x = 812,080.80