Finding the Fourth Proportional to 2,379.41, 3,282.78 and 1,383.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.41 : 3,282.78 = 1,383.87 : x
2. Step 2: Convert to fraction form
   2,379.41/3,282.78 = 1,383.87/x
3. Step 3: Cross multiply
   2,379.41x = 3,282.78 × 1,383.87
4. Step 4: Simplify right side
   2,379.41x = 4,542,940.76
5. Step 5: Solve for x
   x = 4,542,940.76/2,379.41
6. Step 6: Final answer
   x = 1,909.28