Finding the Fourth Proportional to 2,332.72, 3,221.54 and 2,132.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,332.72 : 3,221.54 = 2,132.79 : x
2. Step 2: Convert to fraction form
   2,332.72/3,221.54 = 2,132.79/x
3. Step 3: Cross multiply
   2,332.72x = 3,221.54 × 2,132.79
4. Step 4: Simplify right side
   2,332.72x = 6,870,841.52
5. Step 5: Solve for x
   x = 6,870,841.52/2,332.72
6. Step 6: Final answer
   x = 2,945.42