Finding the Fourth Proportional to 1,548.54, 2,136.82 and 885.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.54 : 2,136.82 = 885.37 : x
2. Step 2: Convert to fraction form
   1,548.54/2,136.82 = 885.37/x
3. Step 3: Cross multiply
   1,548.54x = 2,136.82 × 885.37
4. Step 4: Simplify right side
   1,548.54x = 1,891,876.32
5. Step 5: Solve for x
   x = 1,891,876.32/1,548.54
6. Step 6: Final answer
   x = 1,221.72