Finding the Fourth Proportional to 5,784.78, 8,676.59 and 2,087.07

Step by Step Solution

1. Step 1: Write the proportion equation
   5,784.78 : 8,676.59 = 2,087.07 : x
2. Step 2: Convert to fraction form
   5,784.78/8,676.59 = 2,087.07/x
3. Step 3: Cross multiply
   5,784.78x = 8,676.59 × 2,087.07
4. Step 4: Simplify right side
   5,784.78x = 18,108,607.72
5. Step 5: Solve for x
   x = 18,108,607.72/5,784.78
6. Step 6: Final answer
   x = 3,130.39