Finding the Fourth Proportional to 1,544.73, 2,131.63 and 881.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.73 : 2,131.63 = 881.59 : x
2. Step 2: Convert to fraction form
   1,544.73/2,131.63 = 881.59/x
3. Step 3: Cross multiply
   1,544.73x = 2,131.63 × 881.59
4. Step 4: Simplify right side
   1,544.73x = 1,879,223.69
5. Step 5: Solve for x
   x = 1,879,223.69/1,544.73
6. Step 6: Final answer
   x = 1,216.54