Finding the Fourth Proportional to 4,978.30, 6,869.98 and 2,740.27

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.30 : 6,869.98 = 2,740.27 : x
2. Step 2: Convert to fraction form
   4,978.30/6,869.98 = 2,740.27/x
3. Step 3: Cross multiply
   4,978.30x = 6,869.98 × 2,740.27
4. Step 4: Simplify right side
   4,978.30x = 18,825,600.09
5. Step 5: Solve for x
   x = 18,825,600.09/4,978.30
6. Step 6: Final answer
   x = 3,781.53