Finding the Fourth Proportional to 1,085.29, 1,496.15 and 774.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.29 : 1,496.15 = 774.25 : x
2. Step 2: Convert to fraction form
   1,085.29/1,496.15 = 774.25/x
3. Step 3: Cross multiply
   1,085.29x = 1,496.15 × 774.25
4. Step 4: Simplify right side
   1,085.29x = 1,158,390.27
5. Step 5: Solve for x
   x = 1,158,390.27/1,085.29
6. Step 6: Final answer
   x = 1,067.36