Finding the Fourth Proportional to 2,151.54, 3,224.88 and 1,109.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,151.54 : 3,224.88 = 1,109.88 : x
2. Step 2: Convert to fraction form
   2,151.54/3,224.88 = 1,109.88/x
3. Step 3: Cross multiply
   2,151.54x = 3,224.88 × 1,109.88
4. Step 4: Simplify right side
   2,151.54x = 3,579,229.81
5. Step 5: Solve for x
   x = 3,579,229.81/2,151.54
6. Step 6: Final answer
   x = 1,663.57