Finding the Fourth Proportional to 2,269.72, 3,132.24 and 1,275.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.72 : 3,132.24 = 1,275.22 : x
2. Step 2: Convert to fraction form
   2,269.72/3,132.24 = 1,275.22/x
3. Step 3: Cross multiply
   2,269.72x = 3,132.24 × 1,275.22
4. Step 4: Simplify right side
   2,269.72x = 3,994,295.09
5. Step 5: Solve for x
   x = 3,994,295.09/2,269.72
6. Step 6: Final answer
   x = 1,759.82