Finding the Fourth Proportional to 1,224.72, 1,835.46 and 898.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224.72 : 1,835.46 = 898.56 : x
2. Step 2: Convert to fraction form
   1,224.72/1,835.46 = 898.56/x
3. Step 3: Cross multiply
   1,224.72x = 1,835.46 × 898.56
4. Step 4: Simplify right side
   1,224.72x = 1,649,270.94
5. Step 5: Solve for x
   x = 1,649,270.94/1,224.72
6. Step 6: Final answer
   x = 1,346.65