Finding the Fourth Proportional to 2,180.88, 3,269.43 and 881.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.88 : 3,269.43 = 881.51 : x
2. Step 2: Convert to fraction form
   2,180.88/3,269.43 = 881.51/x
3. Step 3: Cross multiply
   2,180.88x = 3,269.43 × 881.51
4. Step 4: Simplify right side
   2,180.88x = 2,882,018.89
5. Step 5: Solve for x
   x = 2,882,018.89/2,180.88
6. Step 6: Final answer
   x = 1,321.49