Finding the Fourth Proportional to 1,046.22, 1,443.78 and 580.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.22 : 1,443.78 = 580.47 : x
2. Step 2: Convert to fraction form
   1,046.22/1,443.78 = 580.47/x
3. Step 3: Cross multiply
   1,046.22x = 1,443.78 × 580.47
4. Step 4: Simplify right side
   1,046.22x = 838,070.98
5. Step 5: Solve for x
   x = 838,070.98/1,046.22
6. Step 6: Final answer
   x = 801.05