Finding the Fourth Proportional to 1,260.89, 1,739.98 and 701.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,260.89 : 1,739.98 = 701.31 : x
2. Step 2: Convert to fraction form
   1,260.89/1,739.98 = 701.31/x
3. Step 3: Cross multiply
   1,260.89x = 1,739.98 × 701.31
4. Step 4: Simplify right side
   1,260.89x = 1,220,265.37
5. Step 5: Solve for x
   x = 1,220,265.37/1,260.89
6. Step 6: Final answer
   x = 967.78