Finding the Fourth Proportional to 1,868.73, 2,783.92 and 1,784.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.73 : 2,783.92 = 1,784.49 : x
2. Step 2: Convert to fraction form
   1,868.73/2,783.92 = 1,784.49/x
3. Step 3: Cross multiply
   1,868.73x = 2,783.92 × 1,784.49
4. Step 4: Simplify right side
   1,868.73x = 4,967,877.40
5. Step 5: Solve for x
   x = 4,967,877.40/1,868.73
6. Step 6: Final answer
   x = 2,658.42