Finding the Fourth Proportional to 2,123.43, 3,185.57 and 1,136.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.43 : 3,185.57 = 1,136.23 : x
2. Step 2: Convert to fraction form
   2,123.43/3,185.57 = 1,136.23/x
3. Step 3: Cross multiply
   2,123.43x = 3,185.57 × 1,136.23
4. Step 4: Simplify right side
   2,123.43x = 3,619,540.20
5. Step 5: Solve for x
   x = 3,619,540.20/2,123.43
6. Step 6: Final answer
   x = 1,704.57