Finding the Fourth Proportional to 1,043.91, 1,440.57 and 601.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.91 : 1,440.57 = 601.89 : x
2. Step 2: Convert to fraction form
   1,043.91/1,440.57 = 601.89/x
3. Step 3: Cross multiply
   1,043.91x = 1,440.57 × 601.89
4. Step 4: Simplify right side
   1,043.91x = 867,064.68
5. Step 5: Solve for x
   x = 867,064.68/1,043.91
6. Step 6: Final answer
   x = 830.59