Finding the Fourth Proportional to 2,022.03, 2,790.32 and 1,137.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,022.03 : 2,790.32 = 1,137.87 : x
2. Step 2: Convert to fraction form
   2,022.03/2,790.32 = 1,137.87/x
3. Step 3: Cross multiply
   2,022.03x = 2,790.32 × 1,137.87
4. Step 4: Simplify right side
   2,022.03x = 3,175,015.73
5. Step 5: Solve for x
   x = 3,175,015.73/2,022.03
6. Step 6: Final answer
   x = 1,570.21