Finding the Fourth Proportional to 3,054.99, 4,578.69 and 1,105.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,054.99 : 4,578.69 = 1,105.05 : x
2. Step 2: Convert to fraction form
   3,054.99/4,578.69 = 1,105.05/x
3. Step 3: Cross multiply
   3,054.99x = 4,578.69 × 1,105.05
4. Step 4: Simplify right side
   3,054.99x = 5,059,681.38
5. Step 5: Solve for x
   x = 5,059,681.38/3,054.99
6. Step 6: Final answer
   x = 1,656.20