Finding the Fourth Proportional to 1,426.54, 2,136.79 and 906.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.54 : 2,136.79 = 906.27 : x
2. Step 2: Convert to fraction form
   1,426.54/2,136.79 = 906.27/x
3. Step 3: Cross multiply
   1,426.54x = 2,136.79 × 906.27
4. Step 4: Simplify right side
   1,426.54x = 1,936,508.67
5. Step 5: Solve for x
   x = 1,936,508.67/1,426.54
6. Step 6: Final answer
   x = 1,357.49