Finding the Fourth Proportional to 2,014.28, 2,778.72 and 1,351.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.28 : 2,778.72 = 1,351.30 : x
2. Step 2: Convert to fraction form
   2,014.28/2,778.72 = 1,351.30/x
3. Step 3: Cross multiply
   2,014.28x = 2,778.72 × 1,351.30
4. Step 4: Simplify right side
   2,014.28x = 3,754,884.34
5. Step 5: Solve for x
   x = 3,754,884.34/2,014.28
6. Step 6: Final answer
   x = 1,864.13