Finding the Fourth Proportional to 2,398.72, 3,596.18 and 1,013.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.72 : 3,596.18 = 1,013.18 : x
2. Step 2: Convert to fraction form
   2,398.72/3,596.18 = 1,013.18/x
3. Step 3: Cross multiply
   2,398.72x = 3,596.18 × 1,013.18
4. Step 4: Simplify right side
   2,398.72x = 3,643,577.65
5. Step 5: Solve for x
   x = 3,643,577.65/2,398.72
6. Step 6: Final answer
   x = 1,518.97