Finding the Fourth Proportional to 2,064.66, 2,840.78 and 1,784

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.66 : 2,840.78 = 1,784 : x
2. Step 2: Convert to fraction form
   2,064.66/2,840.78 = 1,784/x
3. Step 3: Cross multiply
   2,064.66x = 2,840.78 × 1,784
4. Step 4: Simplify right side
   2,064.66x = 5,067,951.52
5. Step 5: Solve for x
   x = 5,067,951.52/2,064.66
6. Step 6: Final answer
   x = 2,454.62