Finding the Fourth Proportional to 1,426.29, 1,968.75 and 836.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.29 : 1,968.75 = 836.82 : x
2. Step 2: Convert to fraction form
   1,426.29/1,968.75 = 836.82/x
3. Step 3: Cross multiply
   1,426.29x = 1,968.75 × 836.82
4. Step 4: Simplify right side
   1,426.29x = 1,647,489.38
5. Step 5: Solve for x
   x = 1,647,489.38/1,426.29
6. Step 6: Final answer
   x = 1,155.09