Finding the Fourth Proportional to 2,341.78, 3,510.20 and 1,108.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,341.78 : 3,510.20 = 1,108.28 : x
2. Step 2: Convert to fraction form
   2,341.78/3,510.20 = 1,108.28/x
3. Step 3: Cross multiply
   2,341.78x = 3,510.20 × 1,108.28
4. Step 4: Simplify right side
   2,341.78x = 3,890,296.00
5. Step 5: Solve for x
   x = 3,890,296.00/2,341.78
6. Step 6: Final answer
   x = 1,661.26