Finding the Fourth Proportional to 2,087.08, 3,130.89 and 699.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,087.08 : 3,130.89 = 699.82 : x
2. Step 2: Convert to fraction form
   2,087.08/3,130.89 = 699.82/x
3. Step 3: Cross multiply
   2,087.08x = 3,130.89 × 699.82
4. Step 4: Simplify right side
   2,087.08x = 2,191,059.44
5. Step 5: Solve for x
   x = 2,191,059.44/2,087.08
6. Step 6: Final answer
   x = 1,049.82