Finding the Fourth Proportional to 2,399.86, 3,601.41 and 938.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,399.86 : 3,601.41 = 938.83 : x
2. Step 2: Convert to fraction form
   2,399.86/3,601.41 = 938.83/x
3. Step 3: Cross multiply
   2,399.86x = 3,601.41 × 938.83
4. Step 4: Simplify right side
   2,399.86x = 3,381,111.75
5. Step 5: Solve for x
   x = 3,381,111.75/2,399.86
6. Step 6: Final answer
   x = 1,408.88