Finding the Fourth Proportional to 2,269.69, 3,131.71 and 1,274.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.69 : 3,131.71 = 1,274.88 : x
2. Step 2: Convert to fraction form
   2,269.69/3,131.71 = 1,274.88/x
3. Step 3: Cross multiply
   2,269.69x = 3,131.71 × 1,274.88
4. Step 4: Simplify right side
   2,269.69x = 3,992,554.44
5. Step 5: Solve for x
   x = 3,992,554.44/2,269.69
6. Step 6: Final answer
   x = 1,759.07