Finding the Fourth Proportional to 3,477.44, 5,196.40 and 3,399.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,477.44 : 5,196.40 = 3,399.68 : x
2. Step 2: Convert to fraction form
   3,477.44/5,196.40 = 3,399.68/x
3. Step 3: Cross multiply
   3,477.44x = 5,196.40 × 3,399.68
4. Step 4: Simplify right side
   3,477.44x = 17,666,097.15
5. Step 5: Solve for x
   x = 17,666,097.15/3,477.44
6. Step 6: Final answer
   x = 5,080.20