Finding the Fourth Proportional to 1,281.54, 1,768.61 and 714.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281.54 : 1,768.61 = 714.46 : x
2. Step 2: Convert to fraction form
   1,281.54/1,768.61 = 714.46/x
3. Step 3: Cross multiply
   1,281.54x = 1,768.61 × 714.46
4. Step 4: Simplify right side
   1,281.54x = 1,263,601.10
5. Step 5: Solve for x
   x = 1,263,601.10/1,281.54
6. Step 6: Final answer
   x = 986.00