Finding the Fourth Proportional to 3,196.72, 4,792.80 and 1,249.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.72 : 4,792.80 = 1,249.12 : x
2. Step 2: Convert to fraction form
   3,196.72/4,792.80 = 1,249.12/x
3. Step 3: Cross multiply
   3,196.72x = 4,792.80 × 1,249.12
4. Step 4: Simplify right side
   3,196.72x = 5,986,782.34
5. Step 5: Solve for x
   x = 5,986,782.34/3,196.72
6. Step 6: Final answer
   x = 1,872.79