Finding the Fourth Proportional to 2,200.62, 3,298.71 and 1,379.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,200.62 : 3,298.71 = 1,379.47 : x
2. Step 2: Convert to fraction form
   2,200.62/3,298.71 = 1,379.47/x
3. Step 3: Cross multiply
   2,200.62x = 3,298.71 × 1,379.47
4. Step 4: Simplify right side
   2,200.62x = 4,550,477.33
5. Step 5: Solve for x
   x = 4,550,477.33/2,200.62
6. Step 6: Final answer
   x = 2,067.81