Finding the Fourth Proportional to 2,196.59, 3,031.29 and 1,201.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.59 : 3,031.29 = 1,201.87 : x
2. Step 2: Convert to fraction form
   2,196.59/3,031.29 = 1,201.87/x
3. Step 3: Cross multiply
   2,196.59x = 3,031.29 × 1,201.87
4. Step 4: Simplify right side
   2,196.59x = 3,643,208.93
5. Step 5: Solve for x
   x = 3,643,208.93/2,196.59
6. Step 6: Final answer
   x = 1,658.58