Finding the Fourth Proportional to 1,606.29, 2,216.61 and 898.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.29 : 2,216.61 = 898.22 : x
2. Step 2: Convert to fraction form
   1,606.29/2,216.61 = 898.22/x
3. Step 3: Cross multiply
   1,606.29x = 2,216.61 × 898.22
4. Step 4: Simplify right side
   1,606.29x = 1,990,992.35
5. Step 5: Solve for x
   x = 1,990,992.35/1,606.29
6. Step 6: Final answer
   x = 1,239.50