Finding the Fourth Proportional to 3,613.39, 4,986.49 and 2,020.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.39 : 4,986.49 = 2,020.10 : x
2. Step 2: Convert to fraction form
   3,613.39/4,986.49 = 2,020.10/x
3. Step 3: Cross multiply
   3,613.39x = 4,986.49 × 2,020.10
4. Step 4: Simplify right side
   3,613.39x = 10,073,178.47
5. Step 5: Solve for x
   x = 10,073,178.47/3,613.39
6. Step 6: Final answer
   x = 2,787.74