Finding the Fourth Proportional to 2,094.85, 3,141.20 and 1,108.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,094.85 : 3,141.20 = 1,108.20 : x
2. Step 2: Convert to fraction form
   2,094.85/3,141.20 = 1,108.20/x
3. Step 3: Cross multiply
   2,094.85x = 3,141.20 × 1,108.20
4. Step 4: Simplify right side
   2,094.85x = 3,481,061.21
5. Step 5: Solve for x
   x = 3,481,061.21/2,094.85
6. Step 6: Final answer
   x = 1,661.72