Finding the Fourth Proportional to 2,381.52, 3,286.32 and 1,333.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.52 : 3,286.32 = 1,333.40 : x
2. Step 2: Convert to fraction form
   2,381.52/3,286.32 = 1,333.40/x
3. Step 3: Cross multiply
   2,381.52x = 3,286.32 × 1,333.40
4. Step 4: Simplify right side
   2,381.52x = 4,381,979.09
5. Step 5: Solve for x
   x = 4,381,979.09/2,381.52
6. Step 6: Final answer
   x = 1,839.99