Finding the Fourth Proportional to 1,727.69, 2,589.50 and 1,171.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,727.69 : 2,589.50 = 1,171.22 : x
2. Step 2: Convert to fraction form
   1,727.69/2,589.50 = 1,171.22/x
3. Step 3: Cross multiply
   1,727.69x = 2,589.50 × 1,171.22
4. Step 4: Simplify right side
   1,727.69x = 3,032,864.17
5. Step 5: Solve for x
   x = 3,032,864.17/1,727.69
6. Step 6: Final answer
   x = 1,755.45