Finding the Fourth Proportional to 3,570.23, 5,355.84 and 1,105.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,570.23 : 5,355.84 = 1,105.23 : x
2. Step 2: Convert to fraction form
   3,570.23/5,355.84 = 1,105.23/x
3. Step 3: Cross multiply
   3,570.23x = 5,355.84 × 1,105.23
4. Step 4: Simplify right side
   3,570.23x = 5,919,435.04
5. Step 5: Solve for x
   x = 5,919,435.04/3,570.23
6. Step 6: Final answer
   x = 1,658.00