Finding the Fourth Proportional to 2,109.85, 2,911.53 and 1,324.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.85 : 2,911.53 = 1,324.33 : x
2. Step 2: Convert to fraction form
   2,109.85/2,911.53 = 1,324.33/x
3. Step 3: Cross multiply
   2,109.85x = 2,911.53 × 1,324.33
4. Step 4: Simplify right side
   2,109.85x = 3,855,826.52
5. Step 5: Solve for x
   x = 3,855,826.52/2,109.85
6. Step 6: Final answer
   x = 1,827.54