Finding the Fourth Proportional to 2,976.04, 4,490.71 and 2,856.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,976.04 : 4,490.71 = 2,856.16 : x
2. Step 2: Convert to fraction form
   2,976.04/4,490.71 = 2,856.16/x
3. Step 3: Cross multiply
   2,976.04x = 4,490.71 × 2,856.16
4. Step 4: Simplify right side
   2,976.04x = 12,826,186.27
5. Step 5: Solve for x
   x = 12,826,186.27/2,976.04
6. Step 6: Final answer
   x = 4,309.82