Finding the Fourth Proportional to 2,078.74, 3,112.49 and 1,296.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.74 : 3,112.49 = 1,296.87 : x
2. Step 2: Convert to fraction form
   2,078.74/3,112.49 = 1,296.87/x
3. Step 3: Cross multiply
   2,078.74x = 3,112.49 × 1,296.87
4. Step 4: Simplify right side
   2,078.74x = 4,036,472.86
5. Step 5: Solve for x
   x = 4,036,472.86/2,078.74
6. Step 6: Final answer
   x = 1,941.79