Finding the Fourth Proportional to 2,820.37, 4,226.96 and 1,339.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,820.37 : 4,226.96 = 1,339.59 : x
2. Step 2: Convert to fraction form
   2,820.37/4,226.96 = 1,339.59/x
3. Step 3: Cross multiply
   2,820.37x = 4,226.96 × 1,339.59
4. Step 4: Simplify right side
   2,820.37x = 5,662,393.35
5. Step 5: Solve for x
   x = 5,662,393.35/2,820.37
6. Step 6: Final answer
   x = 2,007.68