Finding the Fourth Proportional to 2,235.58, 3,086.56 and 2,087.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,235.58 : 3,086.56 = 2,087.76 : x
2. Step 2: Convert to fraction form
   2,235.58/3,086.56 = 2,087.76/x
3. Step 3: Cross multiply
   2,235.58x = 3,086.56 × 2,087.76
4. Step 4: Simplify right side
   2,235.58x = 6,443,996.51
5. Step 5: Solve for x
   x = 6,443,996.51/2,235.58
6. Step 6: Final answer
   x = 2,882.47