Finding the Fourth Proportional to 2,426.21, 3,642.39 and 2,020.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.21 : 3,642.39 = 2,020.31 : x
2. Step 2: Convert to fraction form
   2,426.21/3,642.39 = 2,020.31/x
3. Step 3: Cross multiply
   2,426.21x = 3,642.39 × 2,020.31
4. Step 4: Simplify right side
   2,426.21x = 7,358,756.94
5. Step 5: Solve for x
   x = 7,358,756.94/2,426.21
6. Step 6: Final answer
   x = 3,033.03