Finding the Fourth Proportional to 2,067.07, 3,105.47 and 1,906.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.07 : 3,105.47 = 1,906.69 : x
2. Step 2: Convert to fraction form
   2,067.07/3,105.47 = 1,906.69/x
3. Step 3: Cross multiply
   2,067.07x = 3,105.47 × 1,906.69
4. Step 4: Simplify right side
   2,067.07x = 5,921,168.59
5. Step 5: Solve for x
   x = 5,921,168.59/2,067.07
6. Step 6: Final answer
   x = 2,864.52