Finding the Fourth Proportional to 2,799.18, 4,192.39 and 1,339.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,799.18 : 4,192.39 = 1,339.37 : x
2. Step 2: Convert to fraction form
   2,799.18/4,192.39 = 1,339.37/x
3. Step 3: Cross multiply
   2,799.18x = 4,192.39 × 1,339.37
4. Step 4: Simplify right side
   2,799.18x = 5,615,137.08
5. Step 5: Solve for x
   x = 5,615,137.08/2,799.18
6. Step 6: Final answer
   x = 2,005.99