Finding the Fourth Proportional to 2,661.46, 3,991.68 and 1,017.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,661.46 : 3,991.68 = 1,017.62 : x
2. Step 2: Convert to fraction form
   2,661.46/3,991.68 = 1,017.62/x
3. Step 3: Cross multiply
   2,661.46x = 3,991.68 × 1,017.62
4. Step 4: Simplify right side
   2,661.46x = 4,062,013.40
5. Step 5: Solve for x
   x = 4,062,013.40/2,661.46
6. Step 6: Final answer
   x = 1,526.23