Finding the Fourth Proportional to 1,897.50, 2,619.18 and 1,269.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.50 : 2,619.18 = 1,269.12 : x
2. Step 2: Convert to fraction form
   1,897.50/2,619.18 = 1,269.12/x
3. Step 3: Cross multiply
   1,897.50x = 2,619.18 × 1,269.12
4. Step 4: Simplify right side
   1,897.50x = 3,324,053.72
5. Step 5: Solve for x
   x = 3,324,053.72/1,897.50
6. Step 6: Final answer
   x = 1,751.81