Finding the Fourth Proportional to 2,722.17, 4,083.24 and 774.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.17 : 4,083.24 = 774.37 : x
2. Step 2: Convert to fraction form
   2,722.17/4,083.24 = 774.37/x
3. Step 3: Cross multiply
   2,722.17x = 4,083.24 × 774.37
4. Step 4: Simplify right side
   2,722.17x = 3,161,938.56
5. Step 5: Solve for x
   x = 3,161,938.56/2,722.17
6. Step 6: Final answer
   x = 1,161.55