Finding the Fourth Proportional to 1,715.69, 2,366.79 and 1,085.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,715.69 : 2,366.79 = 1,085.16 : x
2. Step 2: Convert to fraction form
   1,715.69/2,366.79 = 1,085.16/x
3. Step 3: Cross multiply
   1,715.69x = 2,366.79 × 1,085.16
4. Step 4: Simplify right side
   1,715.69x = 2,568,350.64
5. Step 5: Solve for x
   x = 2,568,350.64/1,715.69
6. Step 6: Final answer
   x = 1,496.98