Finding the Fourth Proportional to 2,667.97, 4,002.16 and 720.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.97 : 4,002.16 = 720.16 : x
2. Step 2: Convert to fraction form
   2,667.97/4,002.16 = 720.16/x
3. Step 3: Cross multiply
   2,667.97x = 4,002.16 × 720.16
4. Step 4: Simplify right side
   2,667.97x = 2,882,195.55
5. Step 5: Solve for x
   x = 2,882,195.55/2,667.97
6. Step 6: Final answer
   x = 1,080.30