Finding the Fourth Proportional to 2,103.99, 3,154.91 and 1,131.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.99 : 3,154.91 = 1,131.27 : x
2. Step 2: Convert to fraction form
   2,103.99/3,154.91 = 1,131.27/x
3. Step 3: Cross multiply
   2,103.99x = 3,154.91 × 1,131.27
4. Step 4: Simplify right side
   2,103.99x = 3,569,049.38
5. Step 5: Solve for x
   x = 3,569,049.38/2,103.99
6. Step 6: Final answer
   x = 1,696.32