Finding the Fourth Proportional to 2,104.56, 3,155.52 and 805.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,104.56 : 3,155.52 = 805.44 : x
2. Step 2: Convert to fraction form
   2,104.56/3,155.52 = 805.44/x
3. Step 3: Cross multiply
   2,104.56x = 3,155.52 × 805.44
4. Step 4: Simplify right side
   2,104.56x = 2,541,582.03
5. Step 5: Solve for x
   x = 2,541,582.03/2,104.56
6. Step 6: Final answer
   x = 1,207.65