Finding the Fourth Proportional to 3,924.86, 5,410.59 and 2,803.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,924.86 : 5,410.59 = 2,803.82 : x
2. Step 2: Convert to fraction form
   3,924.86/5,410.59 = 2,803.82/x
3. Step 3: Cross multiply
   3,924.86x = 5,410.59 × 2,803.82
4. Step 4: Simplify right side
   3,924.86x = 15,170,320.45
5. Step 5: Solve for x
   x = 15,170,320.45/3,924.86
6. Step 6: Final answer
   x = 3,865.19