Finding the Fourth Proportional to 2,021.55, 2,789.37 and 1,137.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.55 : 2,789.37 = 1,137.03 : x
2. Step 2: Convert to fraction form
   2,021.55/2,789.37 = 1,137.03/x
3. Step 3: Cross multiply
   2,021.55x = 2,789.37 × 1,137.03
4. Step 4: Simplify right side
   2,021.55x = 3,171,597.37
5. Step 5: Solve for x
   x = 3,171,597.37/2,021.55
6. Step 6: Final answer
   x = 1,568.89