Finding the Fourth Proportional to 2,414.46, 3,621.61 and 771.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.46 : 3,621.61 = 771.10 : x
2. Step 2: Convert to fraction form
   2,414.46/3,621.61 = 771.10/x
3. Step 3: Cross multiply
   2,414.46x = 3,621.61 × 771.10
4. Step 4: Simplify right side
   2,414.46x = 2,792,623.47
5. Step 5: Solve for x
   x = 2,792,623.47/2,414.46
6. Step 6: Final answer
   x = 1,156.62