Finding the Fourth Proportional to 1,426.02, 2,134.89 and 831.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.02 : 2,134.89 = 831.23 : x
2. Step 2: Convert to fraction form
   1,426.02/2,134.89 = 831.23/x
3. Step 3: Cross multiply
   1,426.02x = 2,134.89 × 831.23
4. Step 4: Simplify right side
   1,426.02x = 1,774,573.94
5. Step 5: Solve for x
   x = 1,774,573.94/1,426.02
6. Step 6: Final answer
   x = 1,244.42