Finding the Fourth Proportional to 2,067.88, 3,102.82 and 913.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.88 : 3,102.82 = 913.48 : x
2. Step 2: Convert to fraction form
   2,067.88/3,102.82 = 913.48/x
3. Step 3: Cross multiply
   2,067.88x = 3,102.82 × 913.48
4. Step 4: Simplify right side
   2,067.88x = 2,834,364.01
5. Step 5: Solve for x
   x = 2,834,364.01/2,067.88
6. Step 6: Final answer
   x = 1,370.66