Finding the Fourth Proportional to 1,111.29, 1,668.47 and 563.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.29 : 1,668.47 = 563.86 : x
2. Step 2: Convert to fraction form
   1,111.29/1,668.47 = 563.86/x
3. Step 3: Cross multiply
   1,111.29x = 1,668.47 × 563.86
4. Step 4: Simplify right side
   1,111.29x = 940,780.73
5. Step 5: Solve for x
   x = 940,780.73/1,111.29
6. Step 6: Final answer
   x = 846.57