Finding the Fourth Proportional to 3,055.40, 4,583.55 and 1,107.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,055.40 : 4,583.55 = 1,107.15 : x
2. Step 2: Convert to fraction form
   3,055.40/4,583.55 = 1,107.15/x
3. Step 3: Cross multiply
   3,055.40x = 4,583.55 × 1,107.15
4. Step 4: Simplify right side
   3,055.40x = 5,074,677.38
5. Step 5: Solve for x
   x = 5,074,677.38/3,055.40
6. Step 6: Final answer
   x = 1,660.89