Finding the Fourth Proportional to 3,921.46, 5,407.59 and 2,727.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.46 : 5,407.59 = 2,727.82 : x
2. Step 2: Convert to fraction form
   3,921.46/5,407.59 = 2,727.82/x
3. Step 3: Cross multiply
   3,921.46x = 5,407.59 × 2,727.82
4. Step 4: Simplify right side
   3,921.46x = 14,750,932.15
5. Step 5: Solve for x
   x = 14,750,932.15/3,921.46
6. Step 6: Final answer
   x = 3,761.59