Finding the Fourth Proportional to 2,660.01, 3,989.50 and 1,016.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.01 : 3,989.50 = 1,016.17 : x
2. Step 2: Convert to fraction form
   2,660.01/3,989.50 = 1,016.17/x
3. Step 3: Cross multiply
   2,660.01x = 3,989.50 × 1,016.17
4. Step 4: Simplify right side
   2,660.01x = 4,053,990.27
5. Step 5: Solve for x
   x = 4,053,990.27/2,660.01
6. Step 6: Final answer
   x = 1,524.05