Finding the Fourth Proportional to 2,884.50, 4,320.63 and 2,783.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.50 : 4,320.63 = 2,783.46 : x
2. Step 2: Convert to fraction form
   2,884.50/4,320.63 = 2,783.46/x
3. Step 3: Cross multiply
   2,884.50x = 4,320.63 × 2,783.46
4. Step 4: Simplify right side
   2,884.50x = 12,026,300.78
5. Step 5: Solve for x
   x = 12,026,300.78/2,884.50
6. Step 6: Final answer
   x = 4,169.28