Finding the Fourth Proportional to 2,196.80, 3,031.58 and 1,202.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.80 : 3,031.58 = 1,202.06 : x
2. Step 2: Convert to fraction form
   2,196.80/3,031.58 = 1,202.06/x
3. Step 3: Cross multiply
   2,196.80x = 3,031.58 × 1,202.06
4. Step 4: Simplify right side
   2,196.80x = 3,644,141.05
5. Step 5: Solve for x
   x = 3,644,141.05/2,196.80
6. Step 6: Final answer
   x = 1,658.84