Finding the Fourth Proportional to 1,104.22, 1,521.33 and 854.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,104.22 : 1,521.33 = 854.68 : x
2. Step 2: Convert to fraction form
   1,104.22/1,521.33 = 854.68/x
3. Step 3: Cross multiply
   1,104.22x = 1,521.33 × 854.68
4. Step 4: Simplify right side
   1,104.22x = 1,300,250.32
5. Step 5: Solve for x
   x = 1,300,250.32/1,104.22
6. Step 6: Final answer
   x = 1,177.53