Finding the Fourth Proportional to 1,563.37, 2,156.25 and 1,091.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,563.37 : 2,156.25 = 1,091.11 : x
2. Step 2: Convert to fraction form
   1,563.37/2,156.25 = 1,091.11/x
3. Step 3: Cross multiply
   1,563.37x = 2,156.25 × 1,091.11
4. Step 4: Simplify right side
   1,563.37x = 2,352,705.54
5. Step 5: Solve for x
   x = 2,352,705.54/1,563.37
6. Step 6: Final answer
   x = 1,504.90