Finding the Fourth Proportional to 790,391.55, 1,185,585.57 and 610,738.23

Step by Step Solution

1. Step 1: Write the proportion equation
   790,391.55 : 1,185,585.57 = 610,738.23 : x
2. Step 2: Convert to fraction form
   790,391.55/1,185,585.57 = 610,738.23/x
3. Step 3: Cross multiply
   790,391.55x = 1,185,585.57 × 610,738.23
4. Step 4: Simplify right side
   790,391.55x = 724,082,432,535.34
5. Step 5: Solve for x
   x = 724,082,432,535.34/790,391.55
6. Step 6: Final answer
   x = 916,105.99