Finding the Fourth Proportional to 2,269.69, 3,132.09 and 1,275.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.69 : 3,132.09 = 1,275.30 : x
2. Step 2: Convert to fraction form
   2,269.69/3,132.09 = 1,275.30/x
3. Step 3: Cross multiply
   2,269.69x = 3,132.09 × 1,275.30
4. Step 4: Simplify right side
   2,269.69x = 3,994,354.38
5. Step 5: Solve for x
   x = 3,994,354.38/2,269.69
6. Step 6: Final answer
   x = 1,759.87