Finding the Fourth Proportional to 2,287.52, 3,429.79 and 1,505.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.52 : 3,429.79 = 1,505.15 : x
2. Step 2: Convert to fraction form
   2,287.52/3,429.79 = 1,505.15/x
3. Step 3: Cross multiply
   2,287.52x = 3,429.79 × 1,505.15
4. Step 4: Simplify right side
   2,287.52x = 5,162,348.83
5. Step 5: Solve for x
   x = 5,162,348.83/2,287.52
6. Step 6: Final answer
   x = 2,256.75