Finding the Fourth Proportional to 2,755.72, 4,132.21 and 881.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,755.72 : 4,132.21 = 881.37 : x
2. Step 2: Convert to fraction form
   2,755.72/4,132.21 = 881.37/x
3. Step 3: Cross multiply
   2,755.72x = 4,132.21 × 881.37
4. Step 4: Simplify right side
   2,755.72x = 3,642,005.93
5. Step 5: Solve for x
   x = 3,642,005.93/2,755.72
6. Step 6: Final answer
   x = 1,321.62