Finding the Fourth Proportional to 2,196.56, 3,031.22 and 1,201.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.56 : 3,031.22 = 1,201.79 : x
2. Step 2: Convert to fraction form
   2,196.56/3,031.22 = 1,201.79/x
3. Step 3: Cross multiply
   2,196.56x = 3,031.22 × 1,201.79
4. Step 4: Simplify right side
   2,196.56x = 3,642,900.47
5. Step 5: Solve for x
   x = 3,642,900.47/2,196.56
6. Step 6: Final answer
   x = 1,658.46