Finding the Fourth Proportional to 2,849.42, 4,269.72 and 1,921.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,849.42 : 4,269.72 = 1,921.34 : x
2. Step 2: Convert to fraction form
   2,849.42/4,269.72 = 1,921.34/x
3. Step 3: Cross multiply
   2,849.42x = 4,269.72 × 1,921.34
4. Step 4: Simplify right side
   2,849.42x = 8,203,583.82
5. Step 5: Solve for x
   x = 8,203,583.82/2,849.42
6. Step 6: Final answer
   x = 2,879.04