Finding the Fourth Proportional to 1,429.46, 2,144.82 and 608.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.46 : 2,144.82 = 608.12 : x
2. Step 2: Convert to fraction form
   1,429.46/2,144.82 = 608.12/x
3. Step 3: Cross multiply
   1,429.46x = 2,144.82 × 608.12
4. Step 4: Simplify right side
   1,429.46x = 1,304,307.94
5. Step 5: Solve for x
   x = 1,304,307.94/1,429.46
6. Step 6: Final answer
   x = 912.45