Finding the Fourth Proportional to 2,587.41, 3,878.03 and 1,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.41 : 3,878.03 = 1,489.50 : x
2. Step 2: Convert to fraction form
   2,587.41/3,878.03 = 1,489.50/x
3. Step 3: Cross multiply
   2,587.41x = 3,878.03 × 1,489.50
4. Step 4: Simplify right side
   2,587.41x = 5,776,329.41
5. Step 5: Solve for x
   x = 5,776,329.41/2,587.41
6. Step 6: Final answer
   x = 2,232.48