Finding the Fourth Proportional to 3,080.46, 4,617.61 and 1,105.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,080.46 : 4,617.61 = 1,105.55 : x
2. Step 2: Convert to fraction form
   3,080.46/4,617.61 = 1,105.55/x
3. Step 3: Cross multiply
   3,080.46x = 4,617.61 × 1,105.55
4. Step 4: Simplify right side
   3,080.46x = 5,105,007.52
5. Step 5: Solve for x
   x = 5,105,007.52/3,080.46
6. Step 6: Final answer
   x = 1,657.22