Finding the Fourth Proportional to 1,716.82, 2,578.35 and 1,647.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,716.82 : 2,578.35 = 1,647.22 : x
2. Step 2: Convert to fraction form
   1,716.82/2,578.35 = 1,647.22/x
3. Step 3: Cross multiply
   1,716.82x = 2,578.35 × 1,647.22
4. Step 4: Simplify right side
   1,716.82x = 4,247,109.69
5. Step 5: Solve for x
   x = 4,247,109.69/1,716.82
6. Step 6: Final answer
   x = 2,473.82