Finding the Fourth Proportional to 2,401.48, 3,598.98 and 939.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.48 : 3,598.98 = 939.80 : x
2. Step 2: Convert to fraction form
   2,401.48/3,598.98 = 939.80/x
3. Step 3: Cross multiply
   2,401.48x = 3,598.98 × 939.80
4. Step 4: Simplify right side
   2,401.48x = 3,382,321.40
5. Step 5: Solve for x
   x = 3,382,321.40/2,401.48
6. Step 6: Final answer
   x = 1,408.43