Finding the Fourth Proportional to 2,076.12, 2,864.03 and 1,279.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.12 : 2,864.03 = 1,279.69 : x
2. Step 2: Convert to fraction form
   2,076.12/2,864.03 = 1,279.69/x
3. Step 3: Cross multiply
   2,076.12x = 2,864.03 × 1,279.69
4. Step 4: Simplify right side
   2,076.12x = 3,665,056.99
5. Step 5: Solve for x
   x = 3,665,056.99/2,076.12
6. Step 6: Final answer
   x = 1,765.34