Finding the Fourth Proportional to 2,378.58, 3,281.52 and 1,383.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,378.58 : 3,281.52 = 1,383.69 : x
2. Step 2: Convert to fraction form
   2,378.58/3,281.52 = 1,383.69/x
3. Step 3: Cross multiply
   2,378.58x = 3,281.52 × 1,383.69
4. Step 4: Simplify right side
   2,378.58x = 4,540,606.41
5. Step 5: Solve for x
   x = 4,540,606.41/2,378.58
6. Step 6: Final answer
   x = 1,908.96