Finding the Fourth Proportional to 6,870.54, 10,305.27 and 1,939.98

Step by Step Solution

1. Step 1: Write the proportion equation
   6,870.54 : 10,305.27 = 1,939.98 : x
2. Step 2: Convert to fraction form
   6,870.54/10,305.27 = 1,939.98/x
3. Step 3: Cross multiply
   6,870.54x = 10,305.27 × 1,939.98
4. Step 4: Simplify right side
   6,870.54x = 19,992,017.69
5. Step 5: Solve for x
   x = 19,992,017.69/6,870.54
6. Step 6: Final answer
   x = 2,909.82