Finding the Fourth Proportional to 3,198.88, 4,799.71 and 1,120.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,198.88 : 4,799.71 = 1,120.37 : x
2. Step 2: Convert to fraction form
   3,198.88/4,799.71 = 1,120.37/x
3. Step 3: Cross multiply
   3,198.88x = 4,799.71 × 1,120.37
4. Step 4: Simplify right side
   3,198.88x = 5,377,455.69
5. Step 5: Solve for x
   x = 5,377,455.69/3,198.88
6. Step 6: Final answer
   x = 1,681.05