Finding the Fourth Proportional to 2,747.31, 4,120.94 and 898.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.31 : 4,120.94 = 898.42 : x
2. Step 2: Convert to fraction form
   2,747.31/4,120.94 = 898.42/x
3. Step 3: Cross multiply
   2,747.31x = 4,120.94 × 898.42
4. Step 4: Simplify right side
   2,747.31x = 3,702,334.91
5. Step 5: Solve for x
   x = 3,702,334.91/2,747.31
6. Step 6: Final answer
   x = 1,347.62