Finding the Fourth Proportional to 1,259.38, 1,737.91 and 699.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259.38 : 1,737.91 = 699.83 : x
2. Step 2: Convert to fraction form
   1,259.38/1,737.91 = 699.83/x
3. Step 3: Cross multiply
   1,259.38x = 1,737.91 × 699.83
4. Step 4: Simplify right side
   1,259.38x = 1,216,229.37
5. Step 5: Solve for x
   x = 1,216,229.37/1,259.38
6. Step 6: Final answer
   x = 965.74