Finding the Fourth Proportional to 3,447.98, 5,172.83 and 1,108.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,447.98 : 5,172.83 = 1,108.19 : x
2. Step 2: Convert to fraction form
   3,447.98/5,172.83 = 1,108.19/x
3. Step 3: Cross multiply
   3,447.98x = 5,172.83 × 1,108.19
4. Step 4: Simplify right side
   3,447.98x = 5,732,447.07
5. Step 5: Solve for x
   x = 5,732,447.07/3,447.98
6. Step 6: Final answer
   x = 1,662.55