Finding the Fourth Proportional to 1,550.56, 2,137.56 and 1,108.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.56 : 2,137.56 = 1,108.30 : x
2. Step 2: Convert to fraction form
   1,550.56/2,137.56 = 1,108.30/x
3. Step 3: Cross multiply
   1,550.56x = 2,137.56 × 1,108.30
4. Step 4: Simplify right side
   1,550.56x = 2,369,057.75
5. Step 5: Solve for x
   x = 2,369,057.75/1,550.56
6. Step 6: Final answer
   x = 1,527.87