Finding the Fourth Proportional to 2,692.02, 4,035.58 and 1,389.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,692.02 : 4,035.58 = 1,389.54 : x
2. Step 2: Convert to fraction form
   2,692.02/4,035.58 = 1,389.54/x
3. Step 3: Cross multiply
   2,692.02x = 4,035.58 × 1,389.54
4. Step 4: Simplify right side
   2,692.02x = 5,607,599.83
5. Step 5: Solve for x
   x = 5,607,599.83/2,692.02
6. Step 6: Final answer
   x = 2,083.05