Finding the Fourth Proportional to 2,196.71, 3,031.41 and 1,201.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.71 : 3,031.41 = 1,201.98 : x
2. Step 2: Convert to fraction form
   2,196.71/3,031.41 = 1,201.98/x
3. Step 3: Cross multiply
   2,196.71x = 3,031.41 × 1,201.98
4. Step 4: Simplify right side
   2,196.71x = 3,643,694.19
5. Step 5: Solve for x
   x = 3,643,694.19/2,196.71
6. Step 6: Final answer
   x = 1,658.71