Finding the Fourth Proportional to 1,892.49, 2,838.76 and 659.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.49 : 2,838.76 = 659.94 : x
2. Step 2: Convert to fraction form
   1,892.49/2,838.76 = 659.94/x
3. Step 3: Cross multiply
   1,892.49x = 2,838.76 × 659.94
4. Step 4: Simplify right side
   1,892.49x = 1,873,411.27
5. Step 5: Solve for x
   x = 1,873,411.27/1,892.49
6. Step 6: Final answer
   x = 989.92