Finding the Fourth Proportional to 2,196.66, 3,031.38 and 1,201.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.66 : 3,031.38 = 1,201.95 : x
2. Step 2: Convert to fraction form
   2,196.66/3,031.38 = 1,201.95/x
3. Step 3: Cross multiply
   2,196.66x = 3,031.38 × 1,201.95
4. Step 4: Simplify right side
   2,196.66x = 3,643,567.19
5. Step 5: Solve for x
   x = 3,643,567.19/2,196.66
6. Step 6: Final answer
   x = 1,658.69