Finding the Fourth Proportional to 1,627.24, 2,245.59 and 881.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.24 : 2,245.59 = 881.20 : x
2. Step 2: Convert to fraction form
   1,627.24/2,245.59 = 881.20/x
3. Step 3: Cross multiply
   1,627.24x = 2,245.59 × 881.20
4. Step 4: Simplify right side
   1,627.24x = 1,978,815.61
5. Step 5: Solve for x
   x = 1,978,815.61/1,627.24
6. Step 6: Final answer
   x = 1,216.06