Finding the Fourth Proportional to 2,448.06, 3,668.43 and 986.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,448.06 : 3,668.43 = 986.41 : x
2. Step 2: Convert to fraction form
   2,448.06/3,668.43 = 986.41/x
3. Step 3: Cross multiply
   2,448.06x = 3,668.43 × 986.41
4. Step 4: Simplify right side
   2,448.06x = 3,618,576.04
5. Step 5: Solve for x
   x = 3,618,576.04/2,448.06
6. Step 6: Final answer
   x = 1,478.14