Finding the Fourth Proportional to 1,262.83, 1,744.17 and 842.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262.83 : 1,744.17 = 842.50 : x
2. Step 2: Convert to fraction form
   1,262.83/1,744.17 = 842.50/x
3. Step 3: Cross multiply
   1,262.83x = 1,744.17 × 842.50
4. Step 4: Simplify right side
   1,262.83x = 1,469,463.23
5. Step 5: Solve for x
   x = 1,469,463.23/1,262.83
6. Step 6: Final answer
   x = 1,163.63