Finding the Fourth Proportional to 3,773.72, 5,208.54 and 2,531

Step by Step Solution

1. Step 1: Write the proportion equation
   3,773.72 : 5,208.54 = 2,531 : x
2. Step 2: Convert to fraction form
   3,773.72/5,208.54 = 2,531/x
3. Step 3: Cross multiply
   3,773.72x = 5,208.54 × 2,531
4. Step 4: Simplify right side
   3,773.72x = 13,182,814.74
5. Step 5: Solve for x
   x = 13,182,814.74/3,773.72
6. Step 6: Final answer
   x = 3,493.32