Finding the Fourth Proportional to 2,067.57, 3,094.21 and 1,276.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.57 : 3,094.21 = 1,276.61 : x
2. Step 2: Convert to fraction form
   2,067.57/3,094.21 = 1,276.61/x
3. Step 3: Cross multiply
   2,067.57x = 3,094.21 × 1,276.61
4. Step 4: Simplify right side
   2,067.57x = 3,950,103.97
5. Step 5: Solve for x
   x = 3,950,103.97/2,067.57
6. Step 6: Final answer
   x = 1,910.51