Finding the Fourth Proportional to 2,508.27, 3,762.91 and 864.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,508.27 : 3,762.91 = 864.88 : x
2. Step 2: Convert to fraction form
   2,508.27/3,762.91 = 864.88/x
3. Step 3: Cross multiply
   2,508.27x = 3,762.91 × 864.88
4. Step 4: Simplify right side
   2,508.27x = 3,254,452.41
5. Step 5: Solve for x
   x = 3,254,452.41/2,508.27
6. Step 6: Final answer
   x = 1,297.49