Finding the Fourth Proportional to 3,971.99, 5,956.06 and 1,198.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,971.99 : 5,956.06 = 1,198.15 : x
2. Step 2: Convert to fraction form
   3,971.99/5,956.06 = 1,198.15/x
3. Step 3: Cross multiply
   3,971.99x = 5,956.06 × 1,198.15
4. Step 4: Simplify right side
   3,971.99x = 7,136,253.29
5. Step 5: Solve for x
   x = 7,136,253.29/3,971.99
6. Step 6: Final answer
   x = 1,796.64