Finding the Fourth Proportional to 2,773.17, 4,159.71 and 825.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,773.17 : 4,159.71 = 825.30 : x
2. Step 2: Convert to fraction form
   2,773.17/4,159.71 = 825.30/x
3. Step 3: Cross multiply
   2,773.17x = 4,159.71 × 825.30
4. Step 4: Simplify right side
   2,773.17x = 3,433,008.66
5. Step 5: Solve for x
   x = 3,433,008.66/2,773.17
6. Step 6: Final answer
   x = 1,237.94