Finding the Fourth Proportional to 5,086.89, 7,018.98 and 2,848.80

Step by Step Solution

1. Step 1: Write the proportion equation
   5,086.89 : 7,018.98 = 2,848.80 : x
2. Step 2: Convert to fraction form
   5,086.89/7,018.98 = 2,848.80/x
3. Step 3: Cross multiply
   5,086.89x = 7,018.98 × 2,848.80
4. Step 4: Simplify right side
   5,086.89x = 19,995,670.22
5. Step 5: Solve for x
   x = 19,995,670.22/5,086.89
6. Step 6: Final answer
   x = 3,930.82