Finding the Fourth Proportional to 2,414.31, 3,622.28 and 771.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.31 : 3,622.28 = 771.09 : x
2. Step 2: Convert to fraction form
   2,414.31/3,622.28 = 771.09/x
3. Step 3: Cross multiply
   2,414.31x = 3,622.28 × 771.09
4. Step 4: Simplify right side
   2,414.31x = 2,793,100.03
5. Step 5: Solve for x
   x = 2,793,100.03/2,414.31
6. Step 6: Final answer
   x = 1,156.89