Finding the Fourth Proportional to 1,277.06, 1,906.83 and 1,144.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,277.06 : 1,906.83 = 1,144.42 : x
2. Step 2: Convert to fraction form
   1,277.06/1,906.83 = 1,144.42/x
3. Step 3: Cross multiply
   1,277.06x = 1,906.83 × 1,144.42
4. Step 4: Simplify right side
   1,277.06x = 2,182,209.62
5. Step 5: Solve for x
   x = 2,182,209.62/1,277.06
6. Step 6: Final answer
   x = 1,708.78