Finding the Fourth Proportional to 2,109.84, 2,911.52 and 1,324.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.84 : 2,911.52 = 1,324.32 : x
2. Step 2: Convert to fraction form
   2,109.84/2,911.52 = 1,324.32/x
3. Step 3: Cross multiply
   2,109.84x = 2,911.52 × 1,324.32
4. Step 4: Simplify right side
   2,109.84x = 3,855,784.17
5. Step 5: Solve for x
   x = 3,855,784.17/2,109.84
6. Step 6: Final answer
   x = 1,827.52