Finding the Fourth Proportional to 1,738.69, 2,608.17 and 712.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,738.69 : 2,608.17 = 712.69 : x
2. Step 2: Convert to fraction form
   1,738.69/2,608.17 = 712.69/x
3. Step 3: Cross multiply
   1,738.69x = 2,608.17 × 712.69
4. Step 4: Simplify right side
   1,738.69x = 1,858,810.16
5. Step 5: Solve for x
   x = 1,858,810.16/1,738.69
6. Step 6: Final answer
   x = 1,069.09