Finding the Fourth Proportional to 1,897.03, 2,618.09 and 1,189.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.03 : 2,618.09 = 1,189.41 : x
2. Step 2: Convert to fraction form
   1,897.03/2,618.09 = 1,189.41/x
3. Step 3: Cross multiply
   1,897.03x = 2,618.09 × 1,189.41
4. Step 4: Simplify right side
   1,897.03x = 3,113,982.43
5. Step 5: Solve for x
   x = 3,113,982.43/1,897.03
6. Step 6: Final answer
   x = 1,641.50