Finding the Fourth Proportional to 2,008.56, 3,012.67 and 692.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.56 : 3,012.67 = 692.31 : x
2. Step 2: Convert to fraction form
   2,008.56/3,012.67 = 692.31/x
3. Step 3: Cross multiply
   2,008.56x = 3,012.67 × 692.31
4. Step 4: Simplify right side
   2,008.56x = 2,085,698.11
5. Step 5: Solve for x
   x = 2,085,698.11/2,008.56
6. Step 6: Final answer
   x = 1,038.40