Finding the Fourth Proportional to 2,587.49, 3,568.81 and 1,642.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.49 : 3,568.81 = 1,642.46 : x
2. Step 2: Convert to fraction form
   2,587.49/3,568.81 = 1,642.46/x
3. Step 3: Cross multiply
   2,587.49x = 3,568.81 × 1,642.46
4. Step 4: Simplify right side
   2,587.49x = 5,861,640.70
5. Step 5: Solve for x
   x = 5,861,640.70/2,587.49
6. Step 6: Final answer
   x = 2,265.37