Finding the Fourth Proportional to 1,133.47, 1,563.79 and 740.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,133.47 : 1,563.79 = 740.72 : x
2. Step 2: Convert to fraction form
   1,133.47/1,563.79 = 740.72/x
3. Step 3: Cross multiply
   1,133.47x = 1,563.79 × 740.72
4. Step 4: Simplify right side
   1,133.47x = 1,158,333.98
5. Step 5: Solve for x
   x = 1,158,333.98/1,133.47
6. Step 6: Final answer
   x = 1,021.94