Finding the Fourth Proportional to 2,076.77, 2,864.59 and 1,479.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.77 : 2,864.59 = 1,479.20 : x
2. Step 2: Convert to fraction form
   2,076.77/2,864.59 = 1,479.20/x
3. Step 3: Cross multiply
   2,076.77x = 2,864.59 × 1,479.20
4. Step 4: Simplify right side
   2,076.77x = 4,237,283.51
5. Step 5: Solve for x
   x = 4,237,283.51/2,076.77
6. Step 6: Final answer
   x = 2,040.32