Finding the Fourth Proportional to 2,021.27, 3,032.10 and 926.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.27 : 3,032.10 = 926.15 : x
2. Step 2: Convert to fraction form
   2,021.27/3,032.10 = 926.15/x
3. Step 3: Cross multiply
   2,021.27x = 3,032.10 × 926.15
4. Step 4: Simplify right side
   2,021.27x = 2,808,164.25
5. Step 5: Solve for x
   x = 2,808,164.25/2,021.27
6. Step 6: Final answer
   x = 1,389.31