Finding the Fourth Proportional to 6,870.86, 10,306.24 and 1,940.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.86 : 10,306.24 = 1,940.46 : x
2. Step 2: Convert to fraction form
   6,870.86/10,306.24 = 1,940.46/x
3. Step 3: Cross multiply
   6,870.86x = 10,306.24 × 1,940.46
4. Step 4: Simplify right side
   6,870.86x = 19,998,846.47
5. Step 5: Solve for x
   x = 19,998,846.47/6,870.86
6. Step 6: Final answer
   x = 2,910.68