Finding the Fourth Proportional to 2,247.60, 3,104.64 and 1,722.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,247.60 : 3,104.64 = 1,722.72 : x
2. Step 2: Convert to fraction form
   2,247.60/3,104.64 = 1,722.72/x
3. Step 3: Cross multiply
   2,247.60x = 3,104.64 × 1,722.72
4. Step 4: Simplify right side
   2,247.60x = 5,348,425.42
5. Step 5: Solve for x
   x = 5,348,425.42/2,247.60
6. Step 6: Final answer
   x = 2,379.62