Finding the Fourth Proportional to 1,891.89, 2,837.43 and 659.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,891.89 : 2,837.43 = 659.42 : x
2. Step 2: Convert to fraction form
   1,891.89/2,837.43 = 659.42/x
3. Step 3: Cross multiply
   1,891.89x = 2,837.43 × 659.42
4. Step 4: Simplify right side
   1,891.89x = 1,871,070.50
5. Step 5: Solve for x
   x = 1,871,070.50/1,891.89
6. Step 6: Final answer
   x = 989.00