Finding the Fourth Proportional to 1,786.89, 2,678.81 and 692.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.89 : 2,678.81 = 692.02 : x
2. Step 2: Convert to fraction form
   1,786.89/2,678.81 = 692.02/x
3. Step 3: Cross multiply
   1,786.89x = 2,678.81 × 692.02
4. Step 4: Simplify right side
   1,786.89x = 1,853,789.98
5. Step 5: Solve for x
   x = 1,853,789.98/1,786.89
6. Step 6: Final answer
   x = 1,037.44