Finding the Fourth Proportional to 1,426.37, 1,968.57 and 836.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.37 : 1,968.57 = 836.96 : x
2. Step 2: Convert to fraction form
   1,426.37/1,968.57 = 836.96/x
3. Step 3: Cross multiply
   1,426.37x = 1,968.57 × 836.96
4. Step 4: Simplify right side
   1,426.37x = 1,647,604.50
5. Step 5: Solve for x
   x = 1,647,604.50/1,426.37
6. Step 6: Final answer
   x = 1,155.11