Finding the Fourth Proportional to 3,744.56, 5,167.48 and 2,151.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,744.56 : 5,167.48 = 2,151.31 : x
2. Step 2: Convert to fraction form
   3,744.56/5,167.48 = 2,151.31/x
3. Step 3: Cross multiply
   3,744.56x = 5,167.48 × 2,151.31
4. Step 4: Simplify right side
   3,744.56x = 11,116,851.40
5. Step 5: Solve for x
   x = 11,116,851.40/3,744.56
6. Step 6: Final answer
   x = 2,968.80