Finding the Fourth Proportional to 2,399.35, 3,599.13 and 938.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.35 : 3,599.13 = 938.84 : x
2. Step 2: Convert to fraction form
   2,399.35/3,599.13 = 938.84/x
3. Step 3: Cross multiply
   2,399.35x = 3,599.13 × 938.84
4. Step 4: Simplify right side
   2,399.35x = 3,379,016.21
5. Step 5: Solve for x
   x = 3,379,016.21/2,399.35
6. Step 6: Final answer
   x = 1,408.31