Finding the Fourth Proportional to 3,144.33, 4,715.73 and 1,142.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.33 : 4,715.73 = 1,142.70 : x
2. Step 2: Convert to fraction form
   3,144.33/4,715.73 = 1,142.70/x
3. Step 3: Cross multiply
   3,144.33x = 4,715.73 × 1,142.70
4. Step 4: Simplify right side
   3,144.33x = 5,388,664.67
5. Step 5: Solve for x
   x = 5,388,664.67/3,144.33
6. Step 6: Final answer
   x = 1,713.77