Finding the Fourth Proportional to 2,276.50, 3,413.33 and 959.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.50 : 3,413.33 = 959.57 : x
2. Step 2: Convert to fraction form
   2,276.50/3,413.33 = 959.57/x
3. Step 3: Cross multiply
   2,276.50x = 3,413.33 × 959.57
4. Step 4: Simplify right side
   2,276.50x = 3,275,340.00
5. Step 5: Solve for x
   x = 3,275,340.00/2,276.50
6. Step 6: Final answer
   x = 1,438.76