Finding the Fourth Proportional to 2,658.66, 3,664.17 and 2,162.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.66 : 3,664.17 = 2,162.94 : x
2. Step 2: Convert to fraction form
   2,658.66/3,664.17 = 2,162.94/x
3. Step 3: Cross multiply
   2,658.66x = 3,664.17 × 2,162.94
4. Step 4: Simplify right side
   2,658.66x = 7,925,379.86
5. Step 5: Solve for x
   x = 7,925,379.86/2,658.66
6. Step 6: Final answer
   x = 2,980.97