Finding the Fourth Proportional to 2,424.61, 3,638.00 and 885.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,424.61 : 3,638.00 = 885.25 : x
2. Step 2: Convert to fraction form
   2,424.61/3,638.00 = 885.25/x
3. Step 3: Cross multiply
   2,424.61x = 3,638.00 × 885.25
4. Step 4: Simplify right side
   2,424.61x = 3,220,535.07
5. Step 5: Solve for x
   x = 3,220,535.07/2,424.61
6. Step 6: Final answer
   x = 1,328.27