Finding the Fourth Proportional to 2,895.32, 4,323.45 and 2,864.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,895.32 : 4,323.45 = 2,864.80 : x
2. Step 2: Convert to fraction form
   2,895.32/4,323.45 = 2,864.80/x
3. Step 3: Cross multiply
   2,895.32x = 4,323.45 × 2,864.80
4. Step 4: Simplify right side
   2,895.32x = 12,385,819.56
5. Step 5: Solve for x
   x = 12,385,819.56/2,895.32
6. Step 6: Final answer
   x = 4,277.88