Finding the Fourth Proportional to 2,474.72, 3,713.96 and 916.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,474.72 : 3,713.96 = 916.20 : x
2. Step 2: Convert to fraction form
   2,474.72/3,713.96 = 916.20/x
3. Step 3: Cross multiply
   2,474.72x = 3,713.96 × 916.20
4. Step 4: Simplify right side
   2,474.72x = 3,402,730.15
5. Step 5: Solve for x
   x = 3,402,730.15/2,474.72
6. Step 6: Final answer
   x = 1,375.00