Finding the Fourth Proportional to 2,660.22, 3,663.27 and 2,286.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.22 : 3,663.27 = 2,286.72 : x
2. Step 2: Convert to fraction form
   2,660.22/3,663.27 = 2,286.72/x
3. Step 3: Cross multiply
   2,660.22x = 3,663.27 × 2,286.72
4. Step 4: Simplify right side
   2,660.22x = 8,376,872.77
5. Step 5: Solve for x
   x = 8,376,872.77/2,660.22
6. Step 6: Final answer
   x = 3,148.94