Finding the Fourth Proportional to 2,196.85, 3,031.73 and 1,202.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.85 : 3,031.73 = 1,202.20 : x
2. Step 2: Convert to fraction form
   2,196.85/3,031.73 = 1,202.20/x
3. Step 3: Cross multiply
   2,196.85x = 3,031.73 × 1,202.20
4. Step 4: Simplify right side
   2,196.85x = 3,644,745.81
5. Step 5: Solve for x
   x = 3,644,745.81/2,196.85
6. Step 6: Final answer
   x = 1,659.08