Finding the Fourth Proportional to 2,253.57, 3,382.83 and 938.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.57 : 3,382.83 = 938.27 : x
2. Step 2: Convert to fraction form
   2,253.57/3,382.83 = 938.27/x
3. Step 3: Cross multiply
   2,253.57x = 3,382.83 × 938.27
4. Step 4: Simplify right side
   2,253.57x = 3,173,997.33
5. Step 5: Solve for x
   x = 3,173,997.33/2,253.57
6. Step 6: Final answer
   x = 1,408.43