Finding the Fourth Proportional to 2,381.24, 3,286.20 and 1,333.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.24 : 3,286.20 = 1,333.31 : x
2. Step 2: Convert to fraction form
   2,381.24/3,286.20 = 1,333.31/x
3. Step 3: Cross multiply
   2,381.24x = 3,286.20 × 1,333.31
4. Step 4: Simplify right side
   2,381.24x = 4,381,523.32
5. Step 5: Solve for x
   x = 4,381,523.32/2,381.24
6. Step 6: Final answer
   x = 1,840.02