Finding the Fourth Proportional to 2,398.61, 3,598.27 and 1,229.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.61 : 3,598.27 = 1,229.28 : x
2. Step 2: Convert to fraction form
   2,398.61/3,598.27 = 1,229.28/x
3. Step 3: Cross multiply
   2,398.61x = 3,598.27 × 1,229.28
4. Step 4: Simplify right side
   2,398.61x = 4,423,271.69
5. Step 5: Solve for x
   x = 4,423,271.69/2,398.61
6. Step 6: Final answer
   x = 1,844.10