Finding the Fourth Proportional to 2,960.71, 4,081.05 and 2,016.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,960.71 : 4,081.05 = 2,016.18 : x
2. Step 2: Convert to fraction form
   2,960.71/4,081.05 = 2,016.18/x
3. Step 3: Cross multiply
   2,960.71x = 4,081.05 × 2,016.18
4. Step 4: Simplify right side
   2,960.71x = 8,228,131.39
5. Step 5: Solve for x
   x = 8,228,131.39/2,960.71
6. Step 6: Final answer
   x = 2,779.11