Finding the Fourth Proportional to 2,399.39, 3,599.52 and 938.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.39 : 3,599.52 = 938.45 : x
2. Step 2: Convert to fraction form
   2,399.39/3,599.52 = 938.45/x
3. Step 3: Cross multiply
   2,399.39x = 3,599.52 × 938.45
4. Step 4: Simplify right side
   2,399.39x = 3,377,951.55
5. Step 5: Solve for x
   x = 3,377,951.55/2,399.39
6. Step 6: Final answer
   x = 1,407.84