Finding the Fourth Proportional to 1,376.65, 1,897.59 and 1,081.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.65 : 1,897.59 = 1,081.41 : x
2. Step 2: Convert to fraction form
   1,376.65/1,897.59 = 1,081.41/x
3. Step 3: Cross multiply
   1,376.65x = 1,897.59 × 1,081.41
4. Step 4: Simplify right side
   1,376.65x = 2,052,072.80
5. Step 5: Solve for x
   x = 2,052,072.80/1,376.65
6. Step 6: Final answer
   x = 1,490.63