Finding the Fourth Proportional to 1,426.40, 1,968.37 and 836.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.40 : 1,968.37 = 836.93 : x
2. Step 2: Convert to fraction form
   1,426.40/1,968.37 = 836.93/x
3. Step 3: Cross multiply
   1,426.40x = 1,968.37 × 836.93
4. Step 4: Simplify right side
   1,426.40x = 1,647,387.90
5. Step 5: Solve for x
   x = 1,647,387.90/1,426.40
6. Step 6: Final answer
   x = 1,154.93