Finding the Fourth Proportional to 2,661.48, 3,993.58 and 2,016.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.48 : 3,993.58 = 2,016.18 : x
2. Step 2: Convert to fraction form
   2,661.48/3,993.58 = 2,016.18/x
3. Step 3: Cross multiply
   2,661.48x = 3,993.58 × 2,016.18
4. Step 4: Simplify right side
   2,661.48x = 8,051,776.12
5. Step 5: Solve for x
   x = 8,051,776.12/2,661.48
6. Step 6: Final answer
   x = 3,025.30