Finding the Fourth Proportional to 2,842.29, 4,262.49 and 1,198.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,842.29 : 4,262.49 = 1,198.80 : x
2. Step 2: Convert to fraction form
   2,842.29/4,262.49 = 1,198.80/x
3. Step 3: Cross multiply
   2,842.29x = 4,262.49 × 1,198.80
4. Step 4: Simplify right side
   2,842.29x = 5,109,873.01
5. Step 5: Solve for x
   x = 5,109,873.01/2,842.29
6. Step 6: Final answer
   x = 1,797.80