Finding the Fourth Proportional to 1,322.22, 1,824.78 and 880.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,322.22 : 1,824.78 = 880.88 : x
2. Step 2: Convert to fraction form
   1,322.22/1,824.78 = 880.88/x
3. Step 3: Cross multiply
   1,322.22x = 1,824.78 × 880.88
4. Step 4: Simplify right side
   1,322.22x = 1,607,401.43
5. Step 5: Solve for x
   x = 1,607,401.43/1,322.22
6. Step 6: Final answer
   x = 1,215.68