Finding the Fourth Proportional to 2,388.46, 3,583.49 and 1,072.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.46 : 3,583.49 = 1,072.09 : x
2. Step 2: Convert to fraction form
   2,388.46/3,583.49 = 1,072.09/x
3. Step 3: Cross multiply
   2,388.46x = 3,583.49 × 1,072.09
4. Step 4: Simplify right side
   2,388.46x = 3,841,808.79
5. Step 5: Solve for x
   x = 3,841,808.79/2,388.46
6. Step 6: Final answer
   x = 1,608.49