Finding the Fourth Proportional to 1,945.43, 2,684.98 and 1,105.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.43 : 2,684.98 = 1,105.97 : x
2. Step 2: Convert to fraction form
   1,945.43/2,684.98 = 1,105.97/x
3. Step 3: Cross multiply
   1,945.43x = 2,684.98 × 1,105.97
4. Step 4: Simplify right side
   1,945.43x = 2,969,507.33
5. Step 5: Solve for x
   x = 2,969,507.33/1,945.43
6. Step 6: Final answer
   x = 1,526.40