Finding the Fourth Proportional to 2,722.04, 4,081.83 and 773.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.04 : 4,081.83 = 773.78 : x
2. Step 2: Convert to fraction form
   2,722.04/4,081.83 = 773.78/x
3. Step 3: Cross multiply
   2,722.04x = 4,081.83 × 773.78
4. Step 4: Simplify right side
   2,722.04x = 3,158,438.42
5. Step 5: Solve for x
   x = 3,158,438.42/2,722.04
6. Step 6: Final answer
   x = 1,160.32