Finding the Fourth Proportional to 1,627.27, 2,245.17 and 963.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.27 : 2,245.17 = 963.88 : x
2. Step 2: Convert to fraction form
   1,627.27/2,245.17 = 963.88/x
3. Step 3: Cross multiply
   1,627.27x = 2,245.17 × 963.88
4. Step 4: Simplify right side
   1,627.27x = 2,164,074.46
5. Step 5: Solve for x
   x = 2,164,074.46/1,627.27
6. Step 6: Final answer
   x = 1,329.88