Finding the Fourth Proportional to 2,715.67, 4,073.59 and 936.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.67 : 4,073.59 = 936.71 : x
2. Step 2: Convert to fraction form
   2,715.67/4,073.59 = 936.71/x
3. Step 3: Cross multiply
   2,715.67x = 4,073.59 × 936.71
4. Step 4: Simplify right side
   2,715.67x = 3,815,791.48
5. Step 5: Solve for x
   x = 3,815,791.48/2,715.67
6. Step 6: Final answer
   x = 1,405.10