Finding the Fourth Proportional to 2,021.94, 3,033.72 and 926.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.94 : 3,033.72 = 926.55 : x
2. Step 2: Convert to fraction form
   2,021.94/3,033.72 = 926.55/x
3. Step 3: Cross multiply
   2,021.94x = 3,033.72 × 926.55
4. Step 4: Simplify right side
   2,021.94x = 2,810,893.27
5. Step 5: Solve for x
   x = 2,810,893.27/2,021.94
6. Step 6: Final answer
   x = 1,390.20