Finding the Fourth Proportional to 3,570.58, 5,356.38 and 1,105.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,570.58 : 5,356.38 = 1,105.62 : x
2. Step 2: Convert to fraction form
   3,570.58/5,356.38 = 1,105.62/x
3. Step 3: Cross multiply
   3,570.58x = 5,356.38 × 1,105.62
4. Step 4: Simplify right side
   3,570.58x = 5,922,120.86
5. Step 5: Solve for x
   x = 5,922,120.86/3,570.58
6. Step 6: Final answer
   x = 1,658.59