Finding the Fourth Proportional to 1,606.07, 2,216.15 and 897.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,606.07 : 2,216.15 = 897.83 : x
2. Step 2: Convert to fraction form
   1,606.07/2,216.15 = 897.83/x
3. Step 3: Cross multiply
   1,606.07x = 2,216.15 × 897.83
4. Step 4: Simplify right side
   1,606.07x = 1,989,710.38
5. Step 5: Solve for x
   x = 1,989,710.38/1,606.07
6. Step 6: Final answer
   x = 1,238.87