Finding the Fourth Proportional to 3,279.50, 4,918.56 and 1,200.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,279.50 : 4,918.56 = 1,200.49 : x
2. Step 2: Convert to fraction form
   3,279.50/4,918.56 = 1,200.49/x
3. Step 3: Cross multiply
   3,279.50x = 4,918.56 × 1,200.49
4. Step 4: Simplify right side
   3,279.50x = 5,904,651.50
5. Step 5: Solve for x
   x = 5,904,651.50/3,279.50
6. Step 6: Final answer
   x = 1,800.47