Finding the Fourth Proportional to 2,612.94, 3,919.96 and 969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.94 : 3,919.96 = 969.50 : x
2. Step 2: Convert to fraction form
   2,612.94/3,919.96 = 969.50/x
3. Step 3: Cross multiply
   2,612.94x = 3,919.96 × 969.50
4. Step 4: Simplify right side
   2,612.94x = 3,800,401.22
5. Step 5: Solve for x
   x = 3,800,401.22/2,612.94
6. Step 6: Final answer
   x = 1,454.45