Finding the Fourth Proportional to 3,016.86, 4,164.39 and 2,086.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,016.86 : 4,164.39 = 2,086.62 : x
2. Step 2: Convert to fraction form
   3,016.86/4,164.39 = 2,086.62/x
3. Step 3: Cross multiply
   3,016.86x = 4,164.39 × 2,086.62
4. Step 4: Simplify right side
   3,016.86x = 8,689,499.46
5. Step 5: Solve for x
   x = 8,689,499.46/3,016.86
6. Step 6: Final answer
   x = 2,880.31