Finding the Fourth Proportional to 2,398.89, 3,598.82 and 1,012.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.89 : 3,598.82 = 1,012.23 : x
2. Step 2: Convert to fraction form
   2,398.89/3,598.82 = 1,012.23/x
3. Step 3: Cross multiply
   2,398.89x = 3,598.82 × 1,012.23
4. Step 4: Simplify right side
   2,398.89x = 3,642,836.10
5. Step 5: Solve for x
   x = 3,642,836.10/2,398.89
6. Step 6: Final answer
   x = 1,518.55