Finding the Fourth Proportional to 3,443.72, 5,172.51 and 2,059.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.72 : 5,172.51 = 2,059.78 : x
2. Step 2: Convert to fraction form
   3,443.72/5,172.51 = 2,059.78/x
3. Step 3: Cross multiply
   3,443.72x = 5,172.51 × 2,059.78
4. Step 4: Simplify right side
   3,443.72x = 10,654,225.55
5. Step 5: Solve for x
   x = 10,654,225.55/3,443.72
6. Step 6: Final answer
   x = 3,093.82