Finding the Fourth Proportional to 1,667.71, 2,496.31 and 1,144.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.71 : 2,496.31 = 1,144.65 : x
2. Step 2: Convert to fraction form
   1,667.71/2,496.31 = 1,144.65/x
3. Step 3: Cross multiply
   1,667.71x = 2,496.31 × 1,144.65
4. Step 4: Simplify right side
   1,667.71x = 2,857,401.24
5. Step 5: Solve for x
   x = 2,857,401.24/1,667.71
6. Step 6: Final answer
   x = 1,713.37