Finding the Fourth Proportional to 2,160.52, 3,241.20 and 773.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.52 : 3,241.20 = 773.96 : x
2. Step 2: Convert to fraction form
   2,160.52/3,241.20 = 773.96/x
3. Step 3: Cross multiply
   2,160.52x = 3,241.20 × 773.96
4. Step 4: Simplify right side
   2,160.52x = 2,508,559.15
5. Step 5: Solve for x
   x = 2,508,559.15/2,160.52
6. Step 6: Final answer
   x = 1,161.09