Finding the Fourth Proportional to 2,398.55, 3,597.60 and 667.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398.55 : 3,597.60 = 667.13 : x
2. Step 2: Convert to fraction form
   2,398.55/3,597.60 = 667.13/x
3. Step 3: Cross multiply
   2,398.55x = 3,597.60 × 667.13
4. Step 4: Simplify right side
   2,398.55x = 2,400,066.89
5. Step 5: Solve for x
   x = 2,400,066.89/2,398.55
6. Step 6: Final answer
   x = 1,000.63