Finding the Fourth Proportional to 2,798.03, 4,198.43 and 1,317.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.03 : 4,198.43 = 1,317.37 : x
2. Step 2: Convert to fraction form
   2,798.03/4,198.43 = 1,317.37/x
3. Step 3: Cross multiply
   2,798.03x = 4,198.43 × 1,317.37
4. Step 4: Simplify right side
   2,798.03x = 5,530,885.73
5. Step 5: Solve for x
   x = 5,530,885.73/2,798.03
6. Step 6: Final answer
   x = 1,976.71