Finding the Fourth Proportional to 3,109.86, 4,661.09 and 2,167.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.86 : 4,661.09 = 2,167.71 : x
2. Step 2: Convert to fraction form
   3,109.86/4,661.09 = 2,167.71/x
3. Step 3: Cross multiply
   3,109.86x = 4,661.09 × 2,167.71
4. Step 4: Simplify right side
   3,109.86x = 10,103,891.34
5. Step 5: Solve for x
   x = 10,103,891.34/3,109.86
6. Step 6: Final answer
   x = 3,248.99