Finding the Fourth Proportional to 1,111.52, 1,665.88 and 563.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.52 : 1,665.88 = 563.84 : x
2. Step 2: Convert to fraction form
   1,111.52/1,665.88 = 563.84/x
3. Step 3: Cross multiply
   1,111.52x = 1,665.88 × 563.84
4. Step 4: Simplify right side
   1,111.52x = 939,289.78
5. Step 5: Solve for x
   x = 939,289.78/1,111.52
6. Step 6: Final answer
   x = 845.05