Finding the Fourth Proportional to 2,773.05, 4,160.28 and 825.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.05 : 4,160.28 = 825.27 : x
2. Step 2: Convert to fraction form
   2,773.05/4,160.28 = 825.27/x
3. Step 3: Cross multiply
   2,773.05x = 4,160.28 × 825.27
4. Step 4: Simplify right side
   2,773.05x = 3,433,354.28
5. Step 5: Solve for x
   x = 3,433,354.28/2,773.05
6. Step 6: Final answer
   x = 1,238.11