Finding the Fourth Proportional to 1,378.44, 1,902.15 and 1,084.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.44 : 1,902.15 = 1,084.41 : x
2. Step 2: Convert to fraction form
   1,378.44/1,902.15 = 1,084.41/x
3. Step 3: Cross multiply
   1,378.44x = 1,902.15 × 1,084.41
4. Step 4: Simplify right side
   1,378.44x = 2,062,710.48
5. Step 5: Solve for x
   x = 2,062,710.48/1,378.44
6. Step 6: Final answer
   x = 1,496.41