Finding the Fourth Proportional to 2,388.54, 3,583.89 and 1,291.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,388.54 : 3,583.89 = 1,291.62 : x
2. Step 2: Convert to fraction form
   2,388.54/3,583.89 = 1,291.62/x
3. Step 3: Cross multiply
   2,388.54x = 3,583.89 × 1,291.62
4. Step 4: Simplify right side
   2,388.54x = 4,629,024.00
5. Step 5: Solve for x
   x = 4,629,024.00/2,388.54
6. Step 6: Final answer
   x = 1,938.01