Finding the Fourth Proportional to 2,518.16, 3,778.73 and 959.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,518.16 : 3,778.73 = 959.48 : x
2. Step 2: Convert to fraction form
   2,518.16/3,778.73 = 959.48/x
3. Step 3: Cross multiply
   2,518.16x = 3,778.73 × 959.48
4. Step 4: Simplify right side
   2,518.16x = 3,625,615.86
5. Step 5: Solve for x
   x = 3,625,615.86/2,518.16
6. Step 6: Final answer
   x = 1,439.79