Finding the Fourth Proportional to 2,196.52, 3,031.20 and 1,201.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.52 : 3,031.20 = 1,201.79 : x
2. Step 2: Convert to fraction form
   2,196.52/3,031.20 = 1,201.79/x
3. Step 3: Cross multiply
   2,196.52x = 3,031.20 × 1,201.79
4. Step 4: Simplify right side
   2,196.52x = 3,642,865.85
5. Step 5: Solve for x
   x = 3,642,865.85/2,196.52
6. Step 6: Final answer
   x = 1,658.47