Finding the Fourth Proportional to 1,325.36, 1,829.76 and 884.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,325.36 : 1,829.76 = 884.72 : x
2. Step 2: Convert to fraction form
   1,325.36/1,829.76 = 884.72/x
3. Step 3: Cross multiply
   1,325.36x = 1,829.76 × 884.72
4. Step 4: Simplify right side
   1,325.36x = 1,618,825.27
5. Step 5: Solve for x
   x = 1,618,825.27/1,325.36
6. Step 6: Final answer
   x = 1,221.42