Finding the Fourth Proportional to 2,566.80, 3,847.59 and 1,105.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,566.80 : 3,847.59 = 1,105.56 : x
2. Step 2: Convert to fraction form
   2,566.80/3,847.59 = 1,105.56/x
3. Step 3: Cross multiply
   2,566.80x = 3,847.59 × 1,105.56
4. Step 4: Simplify right side
   2,566.80x = 4,253,741.60
5. Step 5: Solve for x
   x = 4,253,741.60/2,566.80
6. Step 6: Final answer
   x = 1,657.22