Finding the Fourth Proportional to 1,046.30, 1,443.63 and 626.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.30 : 1,443.63 = 626.81 : x
2. Step 2: Convert to fraction form
   1,046.30/1,443.63 = 626.81/x
3. Step 3: Cross multiply
   1,046.30x = 1,443.63 × 626.81
4. Step 4: Simplify right side
   1,046.30x = 904,881.72
5. Step 5: Solve for x
   x = 904,881.72/1,046.30
6. Step 6: Final answer
   x = 864.84