Finding the Fourth Proportional to 3,279.05, 4,917.88 and 1,200.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,279.05 : 4,917.88 = 1,200.03 : x
2. Step 2: Convert to fraction form
   3,279.05/4,917.88 = 1,200.03/x
3. Step 3: Cross multiply
   3,279.05x = 4,917.88 × 1,200.03
4. Step 4: Simplify right side
   3,279.05x = 5,901,603.54
5. Step 5: Solve for x
   x = 5,901,603.54/3,279.05
6. Step 6: Final answer
   x = 1,799.79