Finding the Fourth Proportional to 1,433.89, 1,979.66 and 1,101.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.89 : 1,979.66 = 1,101.67 : x
2. Step 2: Convert to fraction form
   1,433.89/1,979.66 = 1,101.67/x
3. Step 3: Cross multiply
   1,433.89x = 1,979.66 × 1,101.67
4. Step 4: Simplify right side
   1,433.89x = 2,180,932.03
5. Step 5: Solve for x
   x = 2,180,932.03/1,433.89
6. Step 6: Final answer
   x = 1,520.99