Finding the Fourth Proportional to 3,056.78, 4,582.38 and 1,108.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,056.78 : 4,582.38 = 1,108.55 : x
2. Step 2: Convert to fraction form
   3,056.78/4,582.38 = 1,108.55/x
3. Step 3: Cross multiply
   3,056.78x = 4,582.38 × 1,108.55
4. Step 4: Simplify right side
   3,056.78x = 5,079,797.35
5. Step 5: Solve for x
   x = 5,079,797.35/3,056.78
6. Step 6: Final answer
   x = 1,661.81