Finding the Fourth Proportional to 6,919.70, 10,377.34 and 2,238.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,919.70 : 10,377.34 = 2,238.72 : x
2. Step 2: Convert to fraction form
   6,919.70/10,377.34 = 2,238.72/x
3. Step 3: Cross multiply
   6,919.70x = 10,377.34 × 2,238.72
4. Step 4: Simplify right side
   6,919.70x = 23,231,958.60
5. Step 5: Solve for x
   x = 23,231,958.60/6,919.70
6. Step 6: Final answer
   x = 3,357.37