Finding the Fourth Proportional to 2,447.16, 3,668.69 and 987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,447.16 : 3,668.69 = 987.34 : x
2. Step 2: Convert to fraction form
   2,447.16/3,668.69 = 987.34/x
3. Step 3: Cross multiply
   2,447.16x = 3,668.69 × 987.34
4. Step 4: Simplify right side
   2,447.16x = 3,622,244.56
5. Step 5: Solve for x
   x = 3,622,244.56/2,447.16
6. Step 6: Final answer
   x = 1,480.18