Finding the Fourth Proportional to 2,873.50, 4,311.71 and 1,229.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,873.50 : 4,311.71 = 1,229.60 : x
2. Step 2: Convert to fraction form
   2,873.50/4,311.71 = 1,229.60/x
3. Step 3: Cross multiply
   2,873.50x = 4,311.71 × 1,229.60
4. Step 4: Simplify right side
   2,873.50x = 5,301,678.62
5. Step 5: Solve for x
   x = 5,301,678.62/2,873.50
6. Step 6: Final answer
   x = 1,845.02