Finding the Fourth Proportional to 3,574.42, 5,362.40 and 1,109.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,574.42 : 5,362.40 = 1,109.19 : x
2. Step 2: Convert to fraction form
   3,574.42/5,362.40 = 1,109.19/x
3. Step 3: Cross multiply
   3,574.42x = 5,362.40 × 1,109.19
4. Step 4: Simplify right side
   3,574.42x = 5,947,920.46
5. Step 5: Solve for x
   x = 5,947,920.46/3,574.42
6. Step 6: Final answer
   x = 1,664.02