Finding the Fourth Proportional to 2,287.33, 3,431.03 and 727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.33 : 3,431.03 = 727.57 : x
2. Step 2: Convert to fraction form
   2,287.33/3,431.03 = 727.57/x
3. Step 3: Cross multiply
   2,287.33x = 3,431.03 × 727.57
4. Step 4: Simplify right side
   2,287.33x = 2,496,315.15
5. Step 5: Solve for x
   x = 2,496,315.15/2,287.33
6. Step 6: Final answer
   x = 1,091.37