Finding the Fourth Proportional to 1,889.13, 2,826.41 and 1,269.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.13 : 2,826.41 = 1,269.89 : x
2. Step 2: Convert to fraction form
   1,889.13/2,826.41 = 1,269.89/x
3. Step 3: Cross multiply
   1,889.13x = 2,826.41 × 1,269.89
4. Step 4: Simplify right side
   1,889.13x = 3,589,209.31
5. Step 5: Solve for x
   x = 3,589,209.31/1,889.13
6. Step 6: Final answer
   x = 1,899.93