Finding the Fourth Proportional to 2,020.50, 2,770.89 and 1,936.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.50 : 2,770.89 = 1,936.31 : x
2. Step 2: Convert to fraction form
   2,020.50/2,770.89 = 1,936.31/x
3. Step 3: Cross multiply
   2,020.50x = 2,770.89 × 1,936.31
4. Step 4: Simplify right side
   2,020.50x = 5,365,302.02
5. Step 5: Solve for x
   x = 5,365,302.02/2,020.50
6. Step 6: Final answer
   x = 2,655.43