Finding the Fourth Proportional to 2,272.86, 3,404.90 and 1,689.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,272.86 : 3,404.90 = 1,689.24 : x
2. Step 2: Convert to fraction form
   2,272.86/3,404.90 = 1,689.24/x
3. Step 3: Cross multiply
   2,272.86x = 3,404.90 × 1,689.24
4. Step 4: Simplify right side
   2,272.86x = 5,751,693.28
5. Step 5: Solve for x
   x = 5,751,693.28/2,272.86
6. Step 6: Final answer
   x = 2,530.60