Finding the Fourth Proportional to 1,945.48, 2,684.66 and 1,105.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.48 : 2,684.66 = 1,105.96 : x
2. Step 2: Convert to fraction form
   1,945.48/2,684.66 = 1,105.96/x
3. Step 3: Cross multiply
   1,945.48x = 2,684.66 × 1,105.96
4. Step 4: Simplify right side
   1,945.48x = 2,969,126.57
5. Step 5: Solve for x
   x = 2,969,126.57/1,945.48
6. Step 6: Final answer
   x = 1,526.17