Finding the Fourth Proportional to 3,298.93, 4,949.12 and 1,107.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,298.93 : 4,949.12 = 1,107.60 : x
2. Step 2: Convert to fraction form
   3,298.93/4,949.12 = 1,107.60/x
3. Step 3: Cross multiply
   3,298.93x = 4,949.12 × 1,107.60
4. Step 4: Simplify right side
   3,298.93x = 5,481,667.66
5. Step 5: Solve for x
   x = 5,481,667.66/3,298.93
6. Step 6: Final answer
   x = 1,661.65