Finding the Fourth Proportional to 1,655.50, 2,284.59 and 956.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,655.50 : 2,284.59 = 956.88 : x
2. Step 2: Convert to fraction form
   1,655.50/2,284.59 = 956.88/x
3. Step 3: Cross multiply
   1,655.50x = 2,284.59 × 956.88
4. Step 4: Simplify right side
   1,655.50x = 2,186,078.48
5. Step 5: Solve for x
   x = 2,186,078.48/1,655.50
6. Step 6: Final answer
   x = 1,320.49