Finding the Fourth Proportional to 2,641.72, 3,960.14 and 2,423.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.72 : 3,960.14 = 2,423.02 : x
2. Step 2: Convert to fraction form
   2,641.72/3,960.14 = 2,423.02/x
3. Step 3: Cross multiply
   2,641.72x = 3,960.14 × 2,423.02
4. Step 4: Simplify right side
   2,641.72x = 9,595,498.42
5. Step 5: Solve for x
   x = 9,595,498.42/2,641.72
6. Step 6: Final answer
   x = 3,632.29