Finding the Fourth Proportional to 1,061.38, 1,592.94 and 908.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.38 : 1,592.94 = 908.28 : x
2. Step 2: Convert to fraction form
   1,061.38/1,592.94 = 908.28/x
3. Step 3: Cross multiply
   1,061.38x = 1,592.94 × 908.28
4. Step 4: Simplify right side
   1,061.38x = 1,446,835.54
5. Step 5: Solve for x
   x = 1,446,835.54/1,061.38
6. Step 6: Final answer
   x = 1,363.16