Finding the Fourth Proportional to 1,251.92, 1,727.61 and 692.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251.92 : 1,727.61 = 692.42 : x
2. Step 2: Convert to fraction form
   1,251.92/1,727.61 = 692.42/x
3. Step 3: Cross multiply
   1,251.92x = 1,727.61 × 692.42
4. Step 4: Simplify right side
   1,251.92x = 1,196,231.72
5. Step 5: Solve for x
   x = 1,196,231.72/1,251.92
6. Step 6: Final answer
   x = 955.52