Finding the Fourth Proportional to 1,043.91, 1,566.27 and 394.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.91 : 1,566.27 = 394.83 : x
2. Step 2: Convert to fraction form
   1,043.91/1,566.27 = 394.83/x
3. Step 3: Cross multiply
   1,043.91x = 1,566.27 × 394.83
4. Step 4: Simplify right side
   1,043.91x = 618,410.38
5. Step 5: Solve for x
   x = 618,410.38/1,043.91
6. Step 6: Final answer
   x = 592.40