Finding the Fourth Proportional to 2,255.06, 3,382.72 and 938.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.06 : 3,382.72 = 938.94 : x
2. Step 2: Convert to fraction form
   2,255.06/3,382.72 = 938.94/x
3. Step 3: Cross multiply
   2,255.06x = 3,382.72 × 938.94
4. Step 4: Simplify right side
   2,255.06x = 3,176,171.12
5. Step 5: Solve for x
   x = 3,176,171.12/2,255.06
6. Step 6: Final answer
   x = 1,408.46