Finding the Fourth Proportional to 2,436.53, 3,362.31 and 1,388.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.53 : 3,362.31 = 1,388.52 : x
2. Step 2: Convert to fraction form
   2,436.53/3,362.31 = 1,388.52/x
3. Step 3: Cross multiply
   2,436.53x = 3,362.31 × 1,388.52
4. Step 4: Simplify right side
   2,436.53x = 4,668,634.68
5. Step 5: Solve for x
   x = 4,668,634.68/2,436.53
6. Step 6: Final answer
   x = 1,916.10