Finding the Fourth Proportional to 2,868.14, 4,301.57 and 1,019.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.14 : 4,301.57 = 1,019.31 : x
2. Step 2: Convert to fraction form
   2,868.14/4,301.57 = 1,019.31/x
3. Step 3: Cross multiply
   2,868.14x = 4,301.57 × 1,019.31
4. Step 4: Simplify right side
   2,868.14x = 4,384,628.22
5. Step 5: Solve for x
   x = 4,384,628.22/2,868.14
6. Step 6: Final answer
   x = 1,528.74