Finding the Fourth Proportional to 2,976.80, 4,443.45 and 2,759.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.80 : 4,443.45 = 2,759.98 : x
2. Step 2: Convert to fraction form
   2,976.80/4,443.45 = 2,759.98/x
3. Step 3: Cross multiply
   2,976.80x = 4,443.45 × 2,759.98
4. Step 4: Simplify right side
   2,976.80x = 12,263,833.13
5. Step 5: Solve for x
   x = 12,263,833.13/2,976.80
6. Step 6: Final answer
   x = 4,119.81