Finding the Fourth Proportional to 2,377.98, 3,281.76 and 1,383.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.98 : 3,281.76 = 1,383.57 : x
2. Step 2: Convert to fraction form
   2,377.98/3,281.76 = 1,383.57/x
3. Step 3: Cross multiply
   2,377.98x = 3,281.76 × 1,383.57
4. Step 4: Simplify right side
   2,377.98x = 4,540,544.68
5. Step 5: Solve for x
   x = 4,540,544.68/2,377.98
6. Step 6: Final answer
   x = 1,909.41