Finding the Fourth Proportional to 2,196.63, 3,031.20 and 1,201.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.63 : 3,031.20 = 1,201.71 : x
2. Step 2: Convert to fraction form
   2,196.63/3,031.20 = 1,201.71/x
3. Step 3: Cross multiply
   2,196.63x = 3,031.20 × 1,201.71
4. Step 4: Simplify right side
   2,196.63x = 3,642,623.35
5. Step 5: Solve for x
   x = 3,642,623.35/2,196.63
6. Step 6: Final answer
   x = 1,658.28