Finding the Fourth Proportional to 2,221.81, 3,325.82 and 1,179.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.81 : 3,325.82 = 1,179.23 : x
2. Step 2: Convert to fraction form
   2,221.81/3,325.82 = 1,179.23/x
3. Step 3: Cross multiply
   2,221.81x = 3,325.82 × 1,179.23
4. Step 4: Simplify right side
   2,221.81x = 3,921,906.72
5. Step 5: Solve for x
   x = 3,921,906.72/2,221.81
6. Step 6: Final answer
   x = 1,765.19