Finding the Fourth Proportional to 2,168.64, 3,249.60 and 1,013.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.64 : 3,249.60 = 1,013.04 : x
2. Step 2: Convert to fraction form
   2,168.64/3,249.60 = 1,013.04/x
3. Step 3: Cross multiply
   2,168.64x = 3,249.60 × 1,013.04
4. Step 4: Simplify right side
   2,168.64x = 3,291,974.78
5. Step 5: Solve for x
   x = 3,291,974.78/2,168.64
6. Step 6: Final answer
   x = 1,517.99