Finding the Fourth Proportional to 2,398.57, 3,598.27 and 1,100.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.57 : 3,598.27 = 1,100.15 : x
2. Step 2: Convert to fraction form
   2,398.57/3,598.27 = 1,100.15/x
3. Step 3: Cross multiply
   2,398.57x = 3,598.27 × 1,100.15
4. Step 4: Simplify right side
   2,398.57x = 3,958,631.24
5. Step 5: Solve for x
   x = 3,958,631.24/2,398.57
6. Step 6: Final answer
   x = 1,650.41