Finding the Fourth Proportional to 1,606.58, 2,216.94 and 898.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.58 : 2,216.94 = 898.37 : x
2. Step 2: Convert to fraction form
   1,606.58/2,216.94 = 898.37/x
3. Step 3: Cross multiply
   1,606.58x = 2,216.94 × 898.37
4. Step 4: Simplify right side
   1,606.58x = 1,991,632.39
5. Step 5: Solve for x
   x = 1,991,632.39/1,606.58
6. Step 6: Final answer
   x = 1,239.67