Finding the Fourth Proportional to 2,221.79, 3,330.32 and 1,672.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.79 : 3,330.32 = 1,672.27 : x
2. Step 2: Convert to fraction form
   2,221.79/3,330.32 = 1,672.27/x
3. Step 3: Cross multiply
   2,221.79x = 3,330.32 × 1,672.27
4. Step 4: Simplify right side
   2,221.79x = 5,569,190.03
5. Step 5: Solve for x
   x = 5,569,190.03/2,221.79
6. Step 6: Final answer
   x = 2,506.62