Finding the Fourth Proportional to 1,426.29, 2,136.42 and 906.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.29 : 2,136.42 = 906.02 : x
2. Step 2: Convert to fraction form
   1,426.29/2,136.42 = 906.02/x
3. Step 3: Cross multiply
   1,426.29x = 2,136.42 × 906.02
4. Step 4: Simplify right side
   1,426.29x = 1,935,628.57
5. Step 5: Solve for x
   x = 1,935,628.57/1,426.29
6. Step 6: Final answer
   x = 1,357.11