Finding the Fourth Proportional to 2,196.80, 3,031.57 and 1,252.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.80 : 3,031.57 = 1,252.63 : x
2. Step 2: Convert to fraction form
   2,196.80/3,031.57 = 1,252.63/x
3. Step 3: Cross multiply
   2,196.80x = 3,031.57 × 1,252.63
4. Step 4: Simplify right side
   2,196.80x = 3,797,440.88
5. Step 5: Solve for x
   x = 3,797,440.88/2,196.80
6. Step 6: Final answer
   x = 1,728.62