Finding the Fourth Proportional to 3,714.28, 5,570.72 and 1,864.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,714.28 : 5,570.72 = 1,864.88 : x
2. Step 2: Convert to fraction form
   3,714.28/5,570.72 = 1,864.88/x
3. Step 3: Cross multiply
   3,714.28x = 5,570.72 × 1,864.88
4. Step 4: Simplify right side
   3,714.28x = 10,388,724.31
5. Step 5: Solve for x
   x = 10,388,724.31/3,714.28
6. Step 6: Final answer
   x = 2,796.97