Finding the Fourth Proportional to 6,919.72, 10,380.62 and 2,238.17

Step by Step Solution

1. Step 1: Write the proportion equation
   6,919.72 : 10,380.62 = 2,238.17 : x
2. Step 2: Convert to fraction form
   6,919.72/10,380.62 = 2,238.17/x
3. Step 3: Cross multiply
   6,919.72x = 10,380.62 × 2,238.17
4. Step 4: Simplify right side
   6,919.72x = 23,233,591.76
5. Step 5: Solve for x
   x = 23,233,591.76/6,919.72
6. Step 6: Final answer
   x = 3,357.59