Finding the Fourth Proportional to 3,986.27, 5,501.31 and 2,662.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,986.27 : 5,501.31 = 2,662.19 : x
2. Step 2: Convert to fraction form
   3,986.27/5,501.31 = 2,662.19/x
3. Step 3: Cross multiply
   3,986.27x = 5,501.31 × 2,662.19
4. Step 4: Simplify right side
   3,986.27x = 14,645,532.47
5. Step 5: Solve for x
   x = 14,645,532.47/3,986.27
6. Step 6: Final answer
   x = 3,673.99