Finding the Fourth Proportional to 1,426.84, 1,968.38 and 837.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.84 : 1,968.38 = 837.12 : x
2. Step 2: Convert to fraction form
   1,426.84/1,968.38 = 837.12/x
3. Step 3: Cross multiply
   1,426.84x = 1,968.38 × 837.12
4. Step 4: Simplify right side
   1,426.84x = 1,647,770.27
5. Step 5: Solve for x
   x = 1,647,770.27/1,426.84
6. Step 6: Final answer
   x = 1,154.84