Finding the Fourth Proportional to 1,433.48, 1,976.91 and 928.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.48 : 1,976.91 = 928.82 : x
2. Step 2: Convert to fraction form
   1,433.48/1,976.91 = 928.82/x
3. Step 3: Cross multiply
   1,433.48x = 1,976.91 × 928.82
4. Step 4: Simplify right side
   1,433.48x = 1,836,196.14
5. Step 5: Solve for x
   x = 1,836,196.14/1,433.48
6. Step 6: Final answer
   x = 1,280.94