Finding the Fourth Proportional to 2,351.91, 3,527.85 and 890.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,351.91 : 3,527.85 = 890.73 : x
2. Step 2: Convert to fraction form
   2,351.91/3,527.85 = 890.73/x
3. Step 3: Cross multiply
   2,351.91x = 3,527.85 × 890.73
4. Step 4: Simplify right side
   2,351.91x = 3,142,361.83
5. Step 5: Solve for x
   x = 3,142,361.83/2,351.91
6. Step 6: Final answer
   x = 1,336.09