Finding the Fourth Proportional to 1,111.52, 1,668.18 and 563.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.52 : 1,668.18 = 563.86 : x
2. Step 2: Convert to fraction form
   1,111.52/1,668.18 = 563.86/x
3. Step 3: Cross multiply
   1,111.52x = 1,668.18 × 563.86
4. Step 4: Simplify right side
   1,111.52x = 940,610.22
5. Step 5: Solve for x
   x = 940,610.22/1,111.52
6. Step 6: Final answer
   x = 846.24