Finding the Fourth Proportional to 6,870.83, 10,311.71 and 2,489.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.83 : 10,311.71 = 2,489.54 : x
2. Step 2: Convert to fraction form
   6,870.83/10,311.71 = 2,489.54/x
3. Step 3: Cross multiply
   6,870.83x = 10,311.71 × 2,489.54
4. Step 4: Simplify right side
   6,870.83x = 25,671,350.51
5. Step 5: Solve for x
   x = 25,671,350.51/6,870.83
6. Step 6: Final answer
   x = 3,736.28