Finding the Fourth Proportional to 2,381.38, 3,286.50 and 1,333.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.38 : 3,286.50 = 1,333.64 : x
2. Step 2: Convert to fraction form
   2,381.38/3,286.50 = 1,333.64/x
3. Step 3: Cross multiply
   2,381.38x = 3,286.50 × 1,333.64
4. Step 4: Simplify right side
   2,381.38x = 4,383,007.86
5. Step 5: Solve for x
   x = 4,383,007.86/2,381.38
6. Step 6: Final answer
   x = 1,840.53