Finding the Fourth Proportional to 2,667.39, 4,001.01 and 719.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.39 : 4,001.01 = 719.71 : x
2. Step 2: Convert to fraction form
   2,667.39/4,001.01 = 719.71/x
3. Step 3: Cross multiply
   2,667.39x = 4,001.01 × 719.71
4. Step 4: Simplify right side
   2,667.39x = 2,879,563.31
5. Step 5: Solve for x
   x = 2,879,563.31/2,667.39
6. Step 6: Final answer
   x = 1,079.54