Finding the Fourth Proportional to 1,627.27, 2,245.64 and 881.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,627.27 : 2,245.64 = 881.23 : x
2. Step 2: Convert to fraction form
   1,627.27/2,245.64 = 881.23/x
3. Step 3: Cross multiply
   1,627.27x = 2,245.64 × 881.23
4. Step 4: Simplify right side
   1,627.27x = 1,978,914.45
5. Step 5: Solve for x
   x = 1,978,914.45/1,627.27
6. Step 6: Final answer
   x = 1,216.09