Finding the Fourth Proportional to 2,023.63, 2,792.82 and 1,238.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,023.63 : 2,792.82 = 1,238.20 : x
2. Step 2: Convert to fraction form
   2,023.63/2,792.82 = 1,238.20/x
3. Step 3: Cross multiply
   2,023.63x = 2,792.82 × 1,238.20
4. Step 4: Simplify right side
   2,023.63x = 3,458,069.72
5. Step 5: Solve for x
   x = 3,458,069.72/2,023.63
6. Step 6: Final answer
   x = 1,708.84