Finding the Fourth Proportional to 1,788.54, 2,681.27 and 692.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.54 : 2,681.27 = 692.15 : x
2. Step 2: Convert to fraction form
   1,788.54/2,681.27 = 692.15/x
3. Step 3: Cross multiply
   1,788.54x = 2,681.27 × 692.15
4. Step 4: Simplify right side
   1,788.54x = 1,855,824.16
5. Step 5: Solve for x
   x = 1,855,824.16/1,788.54
6. Step 6: Final answer
   x = 1,037.62