Finding the Fourth Proportional to 2,587.98, 3,573.39 and 2,116.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,587.98 : 3,573.39 = 2,116.38 : x
2. Step 2: Convert to fraction form
   2,587.98/3,573.39 = 2,116.38/x
3. Step 3: Cross multiply
   2,587.98x = 3,573.39 × 2,116.38
4. Step 4: Simplify right side
   2,587.98x = 7,562,651.13
5. Step 5: Solve for x
   x = 7,562,651.13/2,587.98
6. Step 6: Final answer
   x = 2,922.22