Finding the Fourth Proportional to 1,436.76, 1,983.20 and 933.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.76 : 1,983.20 = 933.30 : x
2. Step 2: Convert to fraction form
   1,436.76/1,983.20 = 933.30/x
3. Step 3: Cross multiply
   1,436.76x = 1,983.20 × 933.30
4. Step 4: Simplify right side
   1,436.76x = 1,850,920.56
5. Step 5: Solve for x
   x = 1,850,920.56/1,436.76
6. Step 6: Final answer
   x = 1,288.26