Finding the Fourth Proportional to 3,436.56, 5,192.10 and 3,400.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.56 : 5,192.10 = 3,400.38 : x
2. Step 2: Convert to fraction form
   3,436.56/5,192.10 = 3,400.38/x
3. Step 3: Cross multiply
   3,436.56x = 5,192.10 × 3,400.38
4. Step 4: Simplify right side
   3,436.56x = 17,655,113.00
5. Step 5: Solve for x
   x = 17,655,113.00/3,436.56
6. Step 6: Final answer
   x = 5,137.44