Finding the Fourth Proportional to 1,046.34, 1,443.90 and 580.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.34 : 1,443.90 = 580.58 : x
2. Step 2: Convert to fraction form
   1,046.34/1,443.90 = 580.58/x
3. Step 3: Cross multiply
   1,046.34x = 1,443.90 × 580.58
4. Step 4: Simplify right side
   1,046.34x = 838,299.46
5. Step 5: Solve for x
   x = 838,299.46/1,046.34
6. Step 6: Final answer
   x = 801.17