Finding the Fourth Proportional to 1,671.32, 2,306.30 and 963.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.32 : 2,306.30 = 963.15 : x
2. Step 2: Convert to fraction form
   1,671.32/2,306.30 = 963.15/x
3. Step 3: Cross multiply
   1,671.32x = 2,306.30 × 963.15
4. Step 4: Simplify right side
   1,671.32x = 2,221,308.03
5. Step 5: Solve for x
   x = 2,221,308.03/1,671.32
6. Step 6: Final answer
   x = 1,329.08