Finding the Fourth Proportional to 3,111.53, 4,293.91 and 1,714.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.53 : 4,293.91 = 1,714.28 : x
2. Step 2: Convert to fraction form
   3,111.53/4,293.91 = 1,714.28/x
3. Step 3: Cross multiply
   3,111.53x = 4,293.91 × 1,714.28
4. Step 4: Simplify right side
   3,111.53x = 7,360,949.01
5. Step 5: Solve for x
   x = 7,360,949.01/3,111.53
6. Step 6: Final answer
   x = 2,365.70