Finding the Fourth Proportional to 2,027.56, 2,796.28 and 1,399.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,027.56 : 2,796.28 = 1,399.10 : x
2. Step 2: Convert to fraction form
   2,027.56/2,796.28 = 1,399.10/x
3. Step 3: Cross multiply
   2,027.56x = 2,796.28 × 1,399.10
4. Step 4: Simplify right side
   2,027.56x = 3,912,275.35
5. Step 5: Solve for x
   x = 3,912,275.35/2,027.56
6. Step 6: Final answer
   x = 1,929.55