Finding the Fourth Proportional to 1,499.29, 2,245.09 and 1,108.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.29 : 2,245.09 = 1,108.71 : x
2. Step 2: Convert to fraction form
   1,499.29/2,245.09 = 1,108.71/x
3. Step 3: Cross multiply
   1,499.29x = 2,245.09 × 1,108.71
4. Step 4: Simplify right side
   1,499.29x = 2,489,148.27
5. Step 5: Solve for x
   x = 2,489,148.27/1,499.29
6. Step 6: Final answer
   x = 1,660.22