Finding the Fourth Proportional to 3,185.54, 4,776.55 and 1,105.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.54 : 4,776.55 = 1,105.36 : x
2. Step 2: Convert to fraction form
   3,185.54/4,776.55 = 1,105.36/x
3. Step 3: Cross multiply
   3,185.54x = 4,776.55 × 1,105.36
4. Step 4: Simplify right side
   3,185.54x = 5,279,792.60
5. Step 5: Solve for x
   x = 5,279,792.60/3,185.54
6. Step 6: Final answer
   x = 1,657.43