Finding the Fourth Proportional to 3,443.31, 4,748.61 and 2,247.21

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.31 : 4,748.61 = 2,247.21 : x
2. Step 2: Convert to fraction form
   3,443.31/4,748.61 = 2,247.21/x
3. Step 3: Cross multiply
   3,443.31x = 4,748.61 × 2,247.21
4. Step 4: Simplify right side
   3,443.31x = 10,671,123.88
5. Step 5: Solve for x
   x = 10,671,123.88/3,443.31
6. Step 6: Final answer
   x = 3,099.09