Finding the Fourth Proportional to 2,351.12, 3,527.18 and 890.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,351.12 : 3,527.18 = 890.24 : x
2. Step 2: Convert to fraction form
   2,351.12/3,527.18 = 890.24/x
3. Step 3: Cross multiply
   2,351.12x = 3,527.18 × 890.24
4. Step 4: Simplify right side
   2,351.12x = 3,140,036.72
5. Step 5: Solve for x
   x = 3,140,036.72/2,351.12
6. Step 6: Final answer
   x = 1,335.55