Finding the Fourth Proportional to 2,748.72, 3,788.76 and 2,150.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,748.72 : 3,788.76 = 2,150.16 : x
2. Step 2: Convert to fraction form
   2,748.72/3,788.76 = 2,150.16/x
3. Step 3: Cross multiply
   2,748.72x = 3,788.76 × 2,150.16
4. Step 4: Simplify right side
   2,748.72x = 8,146,440.20
5. Step 5: Solve for x
   x = 8,146,440.20/2,748.72
6. Step 6: Final answer
   x = 2,963.72