Finding the Fourth Proportional to 3,570.50, 5,355.27 and 1,105.13

Step by Step Solution

1. Step 1: Write the proportion equation
   3,570.50 : 5,355.27 = 1,105.13 : x
2. Step 2: Convert to fraction form
   3,570.50/5,355.27 = 1,105.13/x
3. Step 3: Cross multiply
   3,570.50x = 5,355.27 × 1,105.13
4. Step 4: Simplify right side
   3,570.50x = 5,918,242.76
5. Step 5: Solve for x
   x = 5,918,242.76/3,570.50
6. Step 6: Final answer
   x = 1,657.54