Finding the Fourth Proportional to 2,166.33, 2,986.43 and 1,544.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166.33 : 2,986.43 = 1,544.25 : x
2. Step 2: Convert to fraction form
   2,166.33/2,986.43 = 1,544.25/x
3. Step 3: Cross multiply
   2,166.33x = 2,986.43 × 1,544.25
4. Step 4: Simplify right side
   2,166.33x = 4,611,786.81
5. Step 5: Solve for x
   x = 4,611,786.81/2,166.33
6. Step 6: Final answer
   x = 2,128.85