Finding the Fourth Proportional to 2,020.89, 2,788.42 and 1,181.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.89 : 2,788.42 = 1,181.43 : x
2. Step 2: Convert to fraction form
   2,020.89/2,788.42 = 1,181.43/x
3. Step 3: Cross multiply
   2,020.89x = 2,788.42 × 1,181.43
4. Step 4: Simplify right side
   2,020.89x = 3,294,320.09
5. Step 5: Solve for x
   x = 3,294,320.09/2,020.89
6. Step 6: Final answer
   x = 1,630.13