Finding the Fourth Proportional to 2,136.30, 2,948.31 and 1,350.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.30 : 2,948.31 = 1,350.42 : x
2. Step 2: Convert to fraction form
   2,136.30/2,948.31 = 1,350.42/x
3. Step 3: Cross multiply
   2,136.30x = 2,948.31 × 1,350.42
4. Step 4: Simplify right side
   2,136.30x = 3,981,456.79
5. Step 5: Solve for x
   x = 3,981,456.79/2,136.30
6. Step 6: Final answer
   x = 1,863.72