Finding the Fourth Proportional to 2,327.39, 3,211.21 and 1,382.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,327.39 : 3,211.21 = 1,382.78 : x
2. Step 2: Convert to fraction form
   2,327.39/3,211.21 = 1,382.78/x
3. Step 3: Cross multiply
   2,327.39x = 3,211.21 × 1,382.78
4. Step 4: Simplify right side
   2,327.39x = 4,440,401.53
5. Step 5: Solve for x
   x = 4,440,401.53/2,327.39
6. Step 6: Final answer
   x = 1,907.89