Finding the Fourth Proportional to 1,436.25, 1,982.96 and 1,120.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.25 : 1,982.96 = 1,120.97 : x
2. Step 2: Convert to fraction form
   1,436.25/1,982.96 = 1,120.97/x
3. Step 3: Cross multiply
   1,436.25x = 1,982.96 × 1,120.97
4. Step 4: Simplify right side
   1,436.25x = 2,222,823.15
5. Step 5: Solve for x
   x = 2,222,823.15/1,436.25
6. Step 6: Final answer
   x = 1,547.66