Finding the Fourth Proportional to 1,513.12, 2,268.69 and 731.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,513.12 : 2,268.69 = 731.57 : x
2. Step 2: Convert to fraction form
   1,513.12/2,268.69 = 731.57/x
3. Step 3: Cross multiply
   1,513.12x = 2,268.69 × 731.57
4. Step 4: Simplify right side
   1,513.12x = 1,659,705.54
5. Step 5: Solve for x
   x = 1,659,705.54/1,513.12
6. Step 6: Final answer
   x = 1,096.88