Finding the Fourth Proportional to 1,548.09, 2,136.34 and 875.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,548.09 : 2,136.34 = 875.89 : x
2. Step 2: Convert to fraction form
   1,548.09/2,136.34 = 875.89/x
3. Step 3: Cross multiply
   1,548.09x = 2,136.34 × 875.89
4. Step 4: Simplify right side
   1,548.09x = 1,871,202.61
5. Step 5: Solve for x
   x = 1,871,202.61/1,548.09
6. Step 6: Final answer
   x = 1,208.71