Finding the Fourth Proportional to 1,892.69, 2,839.34 and 659.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.69 : 2,839.34 = 659.76 : x
2. Step 2: Convert to fraction form
   1,892.69/2,839.34 = 659.76/x
3. Step 3: Cross multiply
   1,892.69x = 2,839.34 × 659.76
4. Step 4: Simplify right side
   1,892.69x = 1,873,282.96
5. Step 5: Solve for x
   x = 1,873,282.96/1,892.69
6. Step 6: Final answer
   x = 989.75