Finding the Fourth Proportional to 1,433.03, 1,976.78 and 873.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.03 : 1,976.78 = 873.63 : x
2. Step 2: Convert to fraction form
   1,433.03/1,976.78 = 873.63/x
3. Step 3: Cross multiply
   1,433.03x = 1,976.78 × 873.63
4. Step 4: Simplify right side
   1,433.03x = 1,726,974.31
5. Step 5: Solve for x
   x = 1,726,974.31/1,433.03
6. Step 6: Final answer
   x = 1,205.12