Finding the Fourth Proportional to 2,613.36, 3,919.60 and 969.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.36 : 3,919.60 = 969.52 : x
2. Step 2: Convert to fraction form
   2,613.36/3,919.60 = 969.52/x
3. Step 3: Cross multiply
   2,613.36x = 3,919.60 × 969.52
4. Step 4: Simplify right side
   2,613.36x = 3,800,130.59
5. Step 5: Solve for x
   x = 3,800,130.59/2,613.36
6. Step 6: Final answer
   x = 1,454.12