Finding the Fourth Proportional to 1,608.89, 2,216.80 and 1,084.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,608.89 : 2,216.80 = 1,084.01 : x
2. Step 2: Convert to fraction form
   1,608.89/2,216.80 = 1,084.01/x
3. Step 3: Cross multiply
   1,608.89x = 2,216.80 × 1,084.01
4. Step 4: Simplify right side
   1,608.89x = 2,403,033.37
5. Step 5: Solve for x
   x = 2,403,033.37/1,608.89
6. Step 6: Final answer
   x = 1,493.60