Finding the Fourth Proportional to 2,976.57, 4,081.05 and 2,923.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.57 : 4,081.05 = 2,923.92 : x
2. Step 2: Convert to fraction form
   2,976.57/4,081.05 = 2,923.92/x
3. Step 3: Cross multiply
   2,976.57x = 4,081.05 × 2,923.92
4. Step 4: Simplify right side
   2,976.57x = 11,932,663.72
5. Step 5: Solve for x
   x = 11,932,663.72/2,976.57
6. Step 6: Final answer
   x = 4,008.86