Finding the Fourth Proportional to 2,196.62, 3,031.38 and 1,201.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.62 : 3,031.38 = 1,201.89 : x
2. Step 2: Convert to fraction form
   2,196.62/3,031.38 = 1,201.89/x
3. Step 3: Cross multiply
   2,196.62x = 3,031.38 × 1,201.89
4. Step 4: Simplify right side
   2,196.62x = 3,643,394.99
5. Step 5: Solve for x
   x = 3,643,394.99/2,196.62
6. Step 6: Final answer
   x = 1,658.64