Finding the Fourth Proportional to 2,921.27, 4,031.57 and 2,124.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,921.27 : 4,031.57 = 2,124.83 : x
2. Step 2: Convert to fraction form
   2,921.27/4,031.57 = 2,124.83/x
3. Step 3: Cross multiply
   2,921.27x = 4,031.57 × 2,124.83
4. Step 4: Simplify right side
   2,921.27x = 8,566,416.27
5. Step 5: Solve for x
   x = 8,566,416.27/2,921.27
6. Step 6: Final answer
   x = 2,932.43