Finding the Fourth Proportional to 1,081.82, 1,614.83 and 928.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.82 : 1,614.83 = 928.73 : x
2. Step 2: Convert to fraction form
   1,081.82/1,614.83 = 928.73/x
3. Step 3: Cross multiply
   1,081.82x = 1,614.83 × 928.73
4. Step 4: Simplify right side
   1,081.82x = 1,499,728.35
5. Step 5: Solve for x
   x = 1,499,728.35/1,081.82
6. Step 6: Final answer
   x = 1,386.31