Finding the Fourth Proportional to 3,196.98, 4,789.32 and 1,960.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,196.98 : 4,789.32 = 1,960.78 : x
2. Step 2: Convert to fraction form
   3,196.98/4,789.32 = 1,960.78/x
3. Step 3: Cross multiply
   3,196.98x = 4,789.32 × 1,960.78
4. Step 4: Simplify right side
   3,196.98x = 9,390,802.87
5. Step 5: Solve for x
   x = 9,390,802.87/3,196.98
6. Step 6: Final answer
   x = 2,937.40