Finding the Fourth Proportional to 2,114.24, 3,172.03 and 881.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.24 : 3,172.03 = 881.78 : x
2. Step 2: Convert to fraction form
   2,114.24/3,172.03 = 881.78/x
3. Step 3: Cross multiply
   2,114.24x = 3,172.03 × 881.78
4. Step 4: Simplify right side
   2,114.24x = 2,797,032.61
5. Step 5: Solve for x
   x = 2,797,032.61/2,114.24
6. Step 6: Final answer
   x = 1,322.95