Finding the Fourth Proportional to 1,761.72, 2,431.50 and 1,133.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.72 : 2,431.50 = 1,133.04 : x
2. Step 2: Convert to fraction form
   1,761.72/2,431.50 = 1,133.04/x
3. Step 3: Cross multiply
   1,761.72x = 2,431.50 × 1,133.04
4. Step 4: Simplify right side
   1,761.72x = 2,754,986.76
5. Step 5: Solve for x
   x = 2,754,986.76/1,761.72
6. Step 6: Final answer
   x = 1,563.81