Finding the Fourth Proportional to 2,873.34, 4,310.10 and 1,228.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,873.34 : 4,310.10 = 1,228.05 : x
2. Step 2: Convert to fraction form
   2,873.34/4,310.10 = 1,228.05/x
3. Step 3: Cross multiply
   2,873.34x = 4,310.10 × 1,228.05
4. Step 4: Simplify right side
   2,873.34x = 5,293,018.31
5. Step 5: Solve for x
   x = 5,293,018.31/2,873.34
6. Step 6: Final answer
   x = 1,842.11