Finding the Fourth Proportional to 1,259.59, 1,738.06 and 699.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.59 : 1,738.06 = 699.98 : x
2. Step 2: Convert to fraction form
   1,259.59/1,738.06 = 699.98/x
3. Step 3: Cross multiply
   1,259.59x = 1,738.06 × 699.98
4. Step 4: Simplify right side
   1,259.59x = 1,216,603.74
5. Step 5: Solve for x
   x = 1,216,603.74/1,259.59
6. Step 6: Final answer
   x = 965.88