Finding the Fourth Proportional to 2,568.84, 3,850.70 and 1,087.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,568.84 : 3,850.70 = 1,087.89 : x
2. Step 2: Convert to fraction form
   2,568.84/3,850.70 = 1,087.89/x
3. Step 3: Cross multiply
   2,568.84x = 3,850.70 × 1,087.89
4. Step 4: Simplify right side
   2,568.84x = 4,189,132.58
5. Step 5: Solve for x
   x = 4,189,132.58/2,568.84
6. Step 6: Final answer
   x = 1,630.75