Finding the Fourth Proportional to 1,920.43, 2,876.86 and 996.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920.43 : 2,876.86 = 996.59 : x
2. Step 2: Convert to fraction form
   1,920.43/2,876.86 = 996.59/x
3. Step 3: Cross multiply
   1,920.43x = 2,876.86 × 996.59
4. Step 4: Simplify right side
   1,920.43x = 2,867,030.54
5. Step 5: Solve for x
   x = 2,867,030.54/1,920.43
6. Step 6: Final answer
   x = 1,492.91