Finding the Fourth Proportional to 1,185.46, 1,630.72 and 963.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.46 : 1,630.72 = 963.92 : x
2. Step 2: Convert to fraction form
   1,185.46/1,630.72 = 963.92/x
3. Step 3: Cross multiply
   1,185.46x = 1,630.72 × 963.92
4. Step 4: Simplify right side
   1,185.46x = 1,571,883.62
5. Step 5: Solve for x
   x = 1,571,883.62/1,185.46
6. Step 6: Final answer
   x = 1,325.97