Finding the Fourth Proportional to 2,691.72, 3,714.32 and 1,512.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.72 : 3,714.32 = 1,512.56 : x
2. Step 2: Convert to fraction form
   2,691.72/3,714.32 = 1,512.56/x
3. Step 3: Cross multiply
   2,691.72x = 3,714.32 × 1,512.56
4. Step 4: Simplify right side
   2,691.72x = 5,618,131.86
5. Step 5: Solve for x
   x = 5,618,131.86/2,691.72
6. Step 6: Final answer
   x = 2,087.19