Finding the Fourth Proportional to 1,433.27, 2,148.55 and 1,081.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.27 : 2,148.55 = 1,081.33 : x
2. Step 2: Convert to fraction form
   1,433.27/2,148.55 = 1,081.33/x
3. Step 3: Cross multiply
   1,433.27x = 2,148.55 × 1,081.33
4. Step 4: Simplify right side
   1,433.27x = 2,323,280.83
5. Step 5: Solve for x
   x = 2,323,280.83/1,433.27
6. Step 6: Final answer
   x = 1,620.97