Finding the Fourth Proportional to 2,712.72, 3,743.56 and 1,533.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,712.72 : 3,743.56 = 1,533.68 : x
2. Step 2: Convert to fraction form
   2,712.72/3,743.56 = 1,533.68/x
3. Step 3: Cross multiply
   2,712.72x = 3,743.56 × 1,533.68
4. Step 4: Simplify right side
   2,712.72x = 5,741,423.10
5. Step 5: Solve for x
   x = 5,741,423.10/2,712.72
6. Step 6: Final answer
   x = 2,116.48