Finding the Fourth Proportional to 1,083.69, 1,492.54 and 936.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,083.69 : 1,492.54 = 936.27 : x
2. Step 2: Convert to fraction form
   1,083.69/1,492.54 = 936.27/x
3. Step 3: Cross multiply
   1,083.69x = 1,492.54 × 936.27
4. Step 4: Simplify right side
   1,083.69x = 1,397,418.09
5. Step 5: Solve for x
   x = 1,397,418.09/1,083.69
6. Step 6: Final answer
   x = 1,289.50