Finding the Fourth Proportional to 4,986.15, 7,484.69 and 2,799.15

Step by Step Solution

1. Step 1: Write the proportion equation
   4,986.15 : 7,484.69 = 2,799.15 : x
2. Step 2: Convert to fraction form
   4,986.15/7,484.69 = 2,799.15/x
3. Step 3: Cross multiply
   4,986.15x = 7,484.69 × 2,799.15
4. Step 4: Simplify right side
   4,986.15x = 20,950,770.01
5. Step 5: Solve for x
   x = 20,950,770.01/4,986.15
6. Step 6: Final answer
   x = 4,201.79