Finding the Fourth Proportional to 2,176.29, 3,262.59 and 715.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.29 : 3,262.59 = 715.05 : x
2. Step 2: Convert to fraction form
   2,176.29/3,262.59 = 715.05/x
3. Step 3: Cross multiply
   2,176.29x = 3,262.59 × 715.05
4. Step 4: Simplify right side
   2,176.29x = 2,332,914.98
5. Step 5: Solve for x
   x = 2,332,914.98/2,176.29
6. Step 6: Final answer
   x = 1,071.97