Finding the Fourth Proportional to 3,972.96, 5,960.34 and 2,123.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,972.96 : 5,960.34 = 2,123.10 : x
2. Step 2: Convert to fraction form
   3,972.96/5,960.34 = 2,123.10/x
3. Step 3: Cross multiply
   3,972.96x = 5,960.34 × 2,123.10
4. Step 4: Simplify right side
   3,972.96x = 12,654,397.85
5. Step 5: Solve for x
   x = 12,654,397.85/3,972.96
6. Step 6: Final answer
   x = 3,185.13