Finding the Fourth Proportional to 1,400.28, 1,928.74 and 1,065.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.28 : 1,928.74 = 1,065.48 : x
2. Step 2: Convert to fraction form
   1,400.28/1,928.74 = 1,065.48/x
3. Step 3: Cross multiply
   1,400.28x = 1,928.74 × 1,065.48
4. Step 4: Simplify right side
   1,400.28x = 2,055,033.90
5. Step 5: Solve for x
   x = 2,055,033.90/1,400.28
6. Step 6: Final answer
   x = 1,467.59