Finding the Fourth Proportional to 2,078.69, 3,117.13 and 1,104.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.69 : 3,117.13 = 1,104.57 : x
2. Step 2: Convert to fraction form
   2,078.69/3,117.13 = 1,104.57/x
3. Step 3: Cross multiply
   2,078.69x = 3,117.13 × 1,104.57
4. Step 4: Simplify right side
   2,078.69x = 3,443,067.18
5. Step 5: Solve for x
   x = 3,443,067.18/2,078.69
6. Step 6: Final answer
   x = 1,656.36