Finding the Fourth Proportional to 3,185.69, 4,778.24 and 1,105.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.69 : 4,778.24 = 1,105.37 : x
2. Step 2: Convert to fraction form
   3,185.69/4,778.24 = 1,105.37/x
3. Step 3: Cross multiply
   3,185.69x = 4,778.24 × 1,105.37
4. Step 4: Simplify right side
   3,185.69x = 5,281,717.62
5. Step 5: Solve for x
   x = 5,281,717.62/3,185.69
6. Step 6: Final answer
   x = 1,657.95