Finding the Fourth Proportional to 2,436.59, 3,361.61 and 1,388.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,436.59 : 3,361.61 = 1,388.04 : x
2. Step 2: Convert to fraction form
   2,436.59/3,361.61 = 1,388.04/x
3. Step 3: Cross multiply
   2,436.59x = 3,361.61 × 1,388.04
4. Step 4: Simplify right side
   2,436.59x = 4,666,052.61
5. Step 5: Solve for x
   x = 4,666,052.61/2,436.59
6. Step 6: Final answer
   x = 1,915.00