Finding the Fourth Proportional to 3,571.22, 5,354.86 and 1,105.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571.22 : 5,354.86 = 1,105.35 : x
2. Step 2: Convert to fraction form
   3,571.22/5,354.86 = 1,105.35/x
3. Step 3: Cross multiply
   3,571.22x = 5,354.86 × 1,105.35
4. Step 4: Simplify right side
   3,571.22x = 5,918,991.74
5. Step 5: Solve for x
   x = 5,918,991.74/3,571.22
6. Step 6: Final answer
   x = 1,657.42