Finding the Fourth Proportional to 2,771.69, 4,154.63 and 1,105.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,771.69 : 4,154.63 = 1,105.16 : x
2. Step 2: Convert to fraction form
   2,771.69/4,154.63 = 1,105.16/x
3. Step 3: Cross multiply
   2,771.69x = 4,154.63 × 1,105.16
4. Step 4: Simplify right side
   2,771.69x = 4,591,504.59
5. Step 5: Solve for x
   x = 4,591,504.59/2,771.69
6. Step 6: Final answer
   x = 1,656.58