Finding the Fourth Proportional to 1,947.83, 2,921.39 and 1,020.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.83 : 2,921.39 = 1,020.47 : x
2. Step 2: Convert to fraction form
   1,947.83/2,921.39 = 1,020.47/x
3. Step 3: Cross multiply
   1,947.83x = 2,921.39 × 1,020.47
4. Step 4: Simplify right side
   1,947.83x = 2,981,185.75
5. Step 5: Solve for x
   x = 2,981,185.75/1,947.83
6. Step 6: Final answer
   x = 1,530.52