Finding the Fourth Proportional to 1,433.59, 1,979.30 and 1,101.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.59 : 1,979.30 = 1,101.42 : x
2. Step 2: Convert to fraction form
   1,433.59/1,979.30 = 1,101.42/x
3. Step 3: Cross multiply
   1,433.59x = 1,979.30 × 1,101.42
4. Step 4: Simplify right side
   1,433.59x = 2,180,043.36
5. Step 5: Solve for x
   x = 2,180,043.36/1,433.59
6. Step 6: Final answer
   x = 1,520.69