Finding the Fourth Proportional to 2,612.92, 3,919.61 and 969.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.92 : 3,919.61 = 969.48 : x
2. Step 2: Convert to fraction form
   2,612.92/3,919.61 = 969.48/x
3. Step 3: Cross multiply
   2,612.92x = 3,919.61 × 969.48
4. Step 4: Simplify right side
   2,612.92x = 3,799,978.66
5. Step 5: Solve for x
   x = 3,799,978.66/2,612.92
6. Step 6: Final answer
   x = 1,454.30