Finding the Fourth Proportional to 5,152.96, 7,729.39 and 1,643.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,152.96 : 7,729.39 = 1,643.34 : x
2. Step 2: Convert to fraction form
   5,152.96/7,729.39 = 1,643.34/x
3. Step 3: Cross multiply
   5,152.96x = 7,729.39 × 1,643.34
4. Step 4: Simplify right side
   5,152.96x = 12,702,015.76
5. Step 5: Solve for x
   x = 12,702,015.76/5,152.96
6. Step 6: Final answer
   x = 2,464.99