Finding the Fourth Proportional to 3,574.58, 5,361.41 and 1,109.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.58 : 5,361.41 = 1,109.35 : x
2. Step 2: Convert to fraction form
   3,574.58/5,361.41 = 1,109.35/x
3. Step 3: Cross multiply
   3,574.58x = 5,361.41 × 1,109.35
4. Step 4: Simplify right side
   3,574.58x = 5,947,669.55
5. Step 5: Solve for x
   x = 5,947,669.55/3,574.58
6. Step 6: Final answer
   x = 1,663.88