Finding the Fourth Proportional to 2,602.56, 3,904.80 and 960.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.56 : 3,904.80 = 960.18 : x
2. Step 2: Convert to fraction form
   2,602.56/3,904.80 = 960.18/x
3. Step 3: Cross multiply
   2,602.56x = 3,904.80 × 960.18
4. Step 4: Simplify right side
   2,602.56x = 3,749,310.86
5. Step 5: Solve for x
   x = 3,749,310.86/2,602.56
6. Step 6: Final answer
   x = 1,440.62