Finding the Fourth Proportional to 1,046.16, 1,443.70 and 580.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.16 : 1,443.70 = 580.41 : x
2. Step 2: Convert to fraction form
   1,046.16/1,443.70 = 580.41/x
3. Step 3: Cross multiply
   1,046.16x = 1,443.70 × 580.41
4. Step 4: Simplify right side
   1,046.16x = 837,936.47
5. Step 5: Solve for x
   x = 837,936.47/1,046.16
6. Step 6: Final answer
   x = 800.96