Finding the Fourth Proportional to 2,020.86, 3,031.73 and 1,198.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.86 : 3,031.73 = 1,198.17 : x
2. Step 2: Convert to fraction form
   2,020.86/3,031.73 = 1,198.17/x
3. Step 3: Cross multiply
   2,020.86x = 3,031.73 × 1,198.17
4. Step 4: Simplify right side
   2,020.86x = 3,632,521.94
5. Step 5: Solve for x
   x = 3,632,521.94/2,020.86
6. Step 6: Final answer
   x = 1,797.51