Finding the Fourth Proportional to 1,788.89, 2,682.72 and 692.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.89 : 2,682.72 = 692.96 : x
2. Step 2: Convert to fraction form
   1,788.89/2,682.72 = 692.96/x
3. Step 3: Cross multiply
   1,788.89x = 2,682.72 × 692.96
4. Step 4: Simplify right side
   1,788.89x = 1,859,004.24
5. Step 5: Solve for x
   x = 1,859,004.24/1,788.89
6. Step 6: Final answer
   x = 1,039.20