Finding the Fourth Proportional to 1,433.70, 1,976.40 and 908.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.70 : 1,976.40 = 908.82 : x
2. Step 2: Convert to fraction form
   1,433.70/1,976.40 = 908.82/x
3. Step 3: Cross multiply
   1,433.70x = 1,976.40 × 908.82
4. Step 4: Simplify right side
   1,433.70x = 1,796,191.85
5. Step 5: Solve for x
   x = 1,796,191.85/1,433.70
6. Step 6: Final answer
   x = 1,252.84