Finding the Fourth Proportional to 2,399.59, 3,598.17 and 939.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.59 : 3,598.17 = 939.16 : x
2. Step 2: Convert to fraction form
   2,399.59/3,598.17 = 939.16/x
3. Step 3: Cross multiply
   2,399.59x = 3,598.17 × 939.16
4. Step 4: Simplify right side
   2,399.59x = 3,379,257.34
5. Step 5: Solve for x
   x = 3,379,257.34/2,399.59
6. Step 6: Final answer
   x = 1,408.26