Finding the Fourth Proportional to 2,443.06, 3,664.23 and 688.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.06 : 3,664.23 = 688.24 : x
2. Step 2: Convert to fraction form
   2,443.06/3,664.23 = 688.24/x
3. Step 3: Cross multiply
   2,443.06x = 3,664.23 × 688.24
4. Step 4: Simplify right side
   2,443.06x = 2,521,869.66
5. Step 5: Solve for x
   x = 2,521,869.66/2,443.06
6. Step 6: Final answer
   x = 1,032.26