Finding the Fourth Proportional to 2,023.23, 2,792.01 and 1,139.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.23 : 2,792.01 = 1,139.01 : x
2. Step 2: Convert to fraction form
   2,023.23/2,792.01 = 1,139.01/x
3. Step 3: Cross multiply
   2,023.23x = 2,792.01 × 1,139.01
4. Step 4: Simplify right side
   2,023.23x = 3,180,127.31
5. Step 5: Solve for x
   x = 3,180,127.31/2,023.23
6. Step 6: Final answer
   x = 1,571.81