Finding the Fourth Proportional to 3,916.72, 5,405.52 and 2,500.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,916.72 : 5,405.52 = 2,500.48 : x
2. Step 2: Convert to fraction form
   3,916.72/5,405.52 = 2,500.48/x
3. Step 3: Cross multiply
   3,916.72x = 5,405.52 × 2,500.48
4. Step 4: Simplify right side
   3,916.72x = 13,516,394.65
5. Step 5: Solve for x
   x = 13,516,394.65/3,916.72
6. Step 6: Final answer
   x = 3,450.95