Finding the Fourth Proportional to 2,025.51, 2,792.42 and 1,279.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.51 : 2,792.42 = 1,279.09 : x
2. Step 2: Convert to fraction form
   2,025.51/2,792.42 = 1,279.09/x
3. Step 3: Cross multiply
   2,025.51x = 2,792.42 × 1,279.09
4. Step 4: Simplify right side
   2,025.51x = 3,571,765.58
5. Step 5: Solve for x
   x = 3,571,765.58/2,025.51
6. Step 6: Final answer
   x = 1,763.39