Finding the Fourth Proportional to 1,988.89, 2,982.45 and 1,064.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.89 : 2,982.45 = 1,064.27 : x
2. Step 2: Convert to fraction form
   1,988.89/2,982.45 = 1,064.27/x
3. Step 3: Cross multiply
   1,988.89x = 2,982.45 × 1,064.27
4. Step 4: Simplify right side
   1,988.89x = 3,174,132.06
5. Step 5: Solve for x
   x = 3,174,132.06/1,988.89
6. Step 6: Final answer
   x = 1,595.93