Finding the Fourth Proportional to 3,574.72, 5,361.84 and 1,109.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.72 : 5,361.84 = 1,109.92 : x
2. Step 2: Convert to fraction form
   3,574.72/5,361.84 = 1,109.92/x
3. Step 3: Cross multiply
   3,574.72x = 5,361.84 × 1,109.92
4. Step 4: Simplify right side
   3,574.72x = 5,951,213.45
5. Step 5: Solve for x
   x = 5,951,213.45/3,574.72
6. Step 6: Final answer
   x = 1,664.81