Finding the Fourth Proportional to 3,452.72, 5,180.92 and 2,636.24

Step by Step Solution

1. Step 1: Write the proportion equation
   3,452.72 : 5,180.92 = 2,636.24 : x
2. Step 2: Convert to fraction form
   3,452.72/5,180.92 = 2,636.24/x
3. Step 3: Cross multiply
   3,452.72x = 5,180.92 × 2,636.24
4. Step 4: Simplify right side
   3,452.72x = 13,658,148.54
5. Step 5: Solve for x
   x = 13,658,148.54/3,452.72
6. Step 6: Final answer
   x = 3,955.76