Finding the Fourth Proportional to 2,669.37, 4,000.60 and 1,279.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,669.37 : 4,000.60 = 1,279.81 : x
2. Step 2: Convert to fraction form
   2,669.37/4,000.60 = 1,279.81/x
3. Step 3: Cross multiply
   2,669.37x = 4,000.60 × 1,279.81
4. Step 4: Simplify right side
   2,669.37x = 5,120,007.89
5. Step 5: Solve for x
   x = 5,120,007.89/2,669.37
6. Step 6: Final answer
   x = 1,918.06