Finding the Fourth Proportional to 2,255.42, 3,380.81 and 793.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,255.42 : 3,380.81 = 793.55 : x
2. Step 2: Convert to fraction form
   2,255.42/3,380.81 = 793.55/x
3. Step 3: Cross multiply
   2,255.42x = 3,380.81 × 793.55
4. Step 4: Simplify right side
   2,255.42x = 2,682,841.78
5. Step 5: Solve for x
   x = 2,682,841.78/2,255.42
6. Step 6: Final answer
   x = 1,189.51