Finding the Fourth Proportional to 2,612.94, 3,919.83 and 1,296.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.94 : 3,919.83 = 1,296.75 : x
2. Step 2: Convert to fraction form
   2,612.94/3,919.83 = 1,296.75/x
3. Step 3: Cross multiply
   2,612.94x = 3,919.83 × 1,296.75
4. Step 4: Simplify right side
   2,612.94x = 5,083,039.55
5. Step 5: Solve for x
   x = 5,083,039.55/2,612.94
6. Step 6: Final answer
   x = 1,945.33