Finding the Fourth Proportional to 1,544.33, 2,131.33 and 881.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.33 : 2,131.33 = 881.18 : x
2. Step 2: Convert to fraction form
   1,544.33/2,131.33 = 881.18/x
3. Step 3: Cross multiply
   1,544.33x = 2,131.33 × 881.18
4. Step 4: Simplify right side
   1,544.33x = 1,878,085.37
5. Step 5: Solve for x
   x = 1,878,085.37/1,544.33
6. Step 6: Final answer
   x = 1,216.12