Finding the Fourth Proportional to 1,295.56, 1,939.73 and 1,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,295.56 : 1,939.73 = 1,108.72 : x
2. Step 2: Convert to fraction form
   1,295.56/1,939.73 = 1,108.72/x
3. Step 3: Cross multiply
   1,295.56x = 1,939.73 × 1,108.72
4. Step 4: Simplify right side
   1,295.56x = 2,150,602.20
5. Step 5: Solve for x
   x = 2,150,602.20/1,295.56
6. Step 6: Final answer
   x = 1,659.99