Finding the Fourth Proportional to 1,402.84, 1,936.02 and 843.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.84 : 1,936.02 = 843.31 : x
2. Step 2: Convert to fraction form
   1,402.84/1,936.02 = 843.31/x
3. Step 3: Cross multiply
   1,402.84x = 1,936.02 × 843.31
4. Step 4: Simplify right side
   1,402.84x = 1,632,665.03
5. Step 5: Solve for x
   x = 1,632,665.03/1,402.84
6. Step 6: Final answer
   x = 1,163.83