Finding the Fourth Proportional to 2,117.57, 3,177.27 and 1,144.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.57 : 3,177.27 = 1,144.36 : x
2. Step 2: Convert to fraction form
   2,117.57/3,177.27 = 1,144.36/x
3. Step 3: Cross multiply
   2,117.57x = 3,177.27 × 1,144.36
4. Step 4: Simplify right side
   2,117.57x = 3,635,919.09
5. Step 5: Solve for x
   x = 3,635,919.09/2,117.57
6. Step 6: Final answer
   x = 1,717.02