Finding the Fourth Proportional to 1,151.22, 1,727.55 and 1,077.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.22 : 1,727.55 = 1,077.42 : x
2. Step 2: Convert to fraction form
   1,151.22/1,727.55 = 1,077.42/x
3. Step 3: Cross multiply
   1,151.22x = 1,727.55 × 1,077.42
4. Step 4: Simplify right side
   1,151.22x = 1,861,296.92
5. Step 5: Solve for x
   x = 1,861,296.92/1,151.22
6. Step 6: Final answer
   x = 1,616.80