Finding the Fourth Proportional to 1,282.74, 1,770.12 and 723.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.74 : 1,770.12 = 723.27 : x
2. Step 2: Convert to fraction form
   1,282.74/1,770.12 = 723.27/x
3. Step 3: Cross multiply
   1,282.74x = 1,770.12 × 723.27
4. Step 4: Simplify right side
   1,282.74x = 1,280,274.69
5. Step 5: Solve for x
   x = 1,280,274.69/1,282.74
6. Step 6: Final answer
   x = 998.08