Finding the Fourth Proportional to 3,436.56, 5,155.20 and 1,704.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.56 : 5,155.20 = 1,704.72 : x
2. Step 2: Convert to fraction form
   3,436.56/5,155.20 = 1,704.72/x
3. Step 3: Cross multiply
   3,436.56x = 5,155.20 × 1,704.72
4. Step 4: Simplify right side
   3,436.56x = 8,788,172.54
5. Step 5: Solve for x
   x = 8,788,172.54/3,436.56
6. Step 6: Final answer
   x = 2,557.26