Finding the Fourth Proportional to 2,667.96, 4,002.03 and 720.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.96 : 4,002.03 = 720.18 : x
2. Step 2: Convert to fraction form
   2,667.96/4,002.03 = 720.18/x
3. Step 3: Cross multiply
   2,667.96x = 4,002.03 × 720.18
4. Step 4: Simplify right side
   2,667.96x = 2,882,181.97
5. Step 5: Solve for x
   x = 2,882,181.97/2,667.96
6. Step 6: Final answer
   x = 1,080.29