Finding the Fourth Proportional to 2,691.84, 3,714.24 and 1,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,691.84 : 3,714.24 = 1,572.72 : x
2. Step 2: Convert to fraction form
   2,691.84/3,714.24 = 1,572.72/x
3. Step 3: Cross multiply
   2,691.84x = 3,714.24 × 1,572.72
4. Step 4: Simplify right side
   2,691.84x = 5,841,459.53
5. Step 5: Solve for x
   x = 5,841,459.53/2,691.84
6. Step 6: Final answer
   x = 2,170.06