Finding the Fourth Proportional to 1,429.31, 2,144.25 and 607.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.31 : 2,144.25 = 607.58 : x
2. Step 2: Convert to fraction form
   1,429.31/2,144.25 = 607.58/x
3. Step 3: Cross multiply
   1,429.31x = 2,144.25 × 607.58
4. Step 4: Simplify right side
   1,429.31x = 1,302,792.69
5. Step 5: Solve for x
   x = 1,302,792.69/1,429.31
6. Step 6: Final answer
   x = 911.49