Finding the Fourth Proportional to 3,196.70, 4,792.20 and 1,248.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.70 : 4,792.20 = 1,248.45 : x
2. Step 2: Convert to fraction form
   3,196.70/4,792.20 = 1,248.45/x
3. Step 3: Cross multiply
   3,196.70x = 4,792.20 × 1,248.45
4. Step 4: Simplify right side
   3,196.70x = 5,982,822.09
5. Step 5: Solve for x
   x = 5,982,822.09/3,196.70
6. Step 6: Final answer
   x = 1,871.56