Finding the Fourth Proportional to 1,046.34, 1,443.78 and 580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.34 : 1,443.78 = 580.50 : x
2. Step 2: Convert to fraction form
   1,046.34/1,443.78 = 580.50/x
3. Step 3: Cross multiply
   1,046.34x = 1,443.78 × 580.50
4. Step 4: Simplify right side
   1,046.34x = 838,114.29
5. Step 5: Solve for x
   x = 838,114.29/1,046.34
6. Step 6: Final answer
   x = 801.00