Finding the Fourth Proportional to 2,287.18, 3,151.74 and 1,587.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.18 : 3,151.74 = 1,587.34 : x
2. Step 2: Convert to fraction form
   2,287.18/3,151.74 = 1,587.34/x
3. Step 3: Cross multiply
   2,287.18x = 3,151.74 × 1,587.34
4. Step 4: Simplify right side
   2,287.18x = 5,002,882.97
5. Step 5: Solve for x
   x = 5,002,882.97/2,287.18
6. Step 6: Final answer
   x = 2,187.36