Finding the Fourth Proportional to 1,921.47, 2,879.42 and 1,043.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.47 : 2,879.42 = 1,043.23 : x
2. Step 2: Convert to fraction form
   1,921.47/2,879.42 = 1,043.23/x
3. Step 3: Cross multiply
   1,921.47x = 2,879.42 × 1,043.23
4. Step 4: Simplify right side
   1,921.47x = 3,003,884.91
5. Step 5: Solve for x
   x = 3,003,884.91/1,921.47
6. Step 6: Final answer
   x = 1,563.33