Finding the Fourth Proportional to 2,598.80, 3,899.74 and 956.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.80 : 3,899.74 = 956.50 : x
2. Step 2: Convert to fraction form
   2,598.80/3,899.74 = 956.50/x
3. Step 3: Cross multiply
   2,598.80x = 3,899.74 × 956.50
4. Step 4: Simplify right side
   2,598.80x = 3,730,103.28
5. Step 5: Solve for x
   x = 3,730,103.28/2,598.80
6. Step 6: Final answer
   x = 1,435.32