Finding the Fourth Proportional to 1,044.12, 1,440.90 and 602.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.12 : 1,440.90 = 602.10 : x
2. Step 2: Convert to fraction form
   1,044.12/1,440.90 = 602.10/x
3. Step 3: Cross multiply
   1,044.12x = 1,440.90 × 602.10
4. Step 4: Simplify right side
   1,044.12x = 867,565.89
5. Step 5: Solve for x
   x = 867,565.89/1,044.12
6. Step 6: Final answer
   x = 830.91