Finding the Fourth Proportional to 2,087.62, 2,862.63 and 2,017.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.62 : 2,862.63 = 2,017.76 : x
2. Step 2: Convert to fraction form
   2,087.62/2,862.63 = 2,017.76/x
3. Step 3: Cross multiply
   2,087.62x = 2,862.63 × 2,017.76
4. Step 4: Simplify right side
   2,087.62x = 5,776,086.00
5. Step 5: Solve for x
   x = 5,776,086.00/2,087.62
6. Step 6: Final answer
   x = 2,766.83