Finding the Fourth Proportional to 3,446.28, 5,144.53 and 3,213

Step by Step Solution

1. Step 1: Write the proportion equation
   3,446.28 : 5,144.53 = 3,213 : x
2. Step 2: Convert to fraction form
   3,446.28/5,144.53 = 3,213/x
3. Step 3: Cross multiply
   3,446.28x = 5,144.53 × 3,213
4. Step 4: Simplify right side
   3,446.28x = 16,529,374.89
5. Step 5: Solve for x
   x = 16,529,374.89/3,446.28
6. Step 6: Final answer
   x = 4,796.29