Finding the Fourth Proportional to 3,972.62, 5,957.00 and 1,198.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,972.62 : 5,957.00 = 1,198.78 : x
2. Step 2: Convert to fraction form
   3,972.62/5,957.00 = 1,198.78/x
3. Step 3: Cross multiply
   3,972.62x = 5,957.00 × 1,198.78
4. Step 4: Simplify right side
   3,972.62x = 7,141,111.57
5. Step 5: Solve for x
   x = 7,141,111.57/3,972.62
6. Step 6: Final answer
   x = 1,797.58