Finding the Fourth Proportional to 2,717.52, 3,748.60 and 2,157.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,717.52 : 3,748.60 = 2,157.42 : x
2. Step 2: Convert to fraction form
   2,717.52/3,748.60 = 2,157.42/x
3. Step 3: Cross multiply
   2,717.52x = 3,748.60 × 2,157.42
4. Step 4: Simplify right side
   2,717.52x = 8,087,304.61
5. Step 5: Solve for x
   x = 8,087,304.61/2,717.52
6. Step 6: Final answer
   x = 2,975.99