Finding the Fourth Proportional to 3,976.88, 5,965.34 and 1,379.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,976.88 : 5,965.34 = 1,379.82 : x
2. Step 2: Convert to fraction form
   3,976.88/5,965.34 = 1,379.82/x
3. Step 3: Cross multiply
   3,976.88x = 5,965.34 × 1,379.82
4. Step 4: Simplify right side
   3,976.88x = 8,231,095.44
5. Step 5: Solve for x
   x = 8,231,095.44/3,976.88
6. Step 6: Final answer
   x = 2,069.74