Finding the Fourth Proportional to 1,890.69, 2,609.10 and 1,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.69 : 2,609.10 = 1,104.72 : x
2. Step 2: Convert to fraction form
   1,890.69/2,609.10 = 1,104.72/x
3. Step 3: Cross multiply
   1,890.69x = 2,609.10 × 1,104.72
4. Step 4: Simplify right side
   1,890.69x = 2,882,324.95
5. Step 5: Solve for x
   x = 2,882,324.95/1,890.69
6. Step 6: Final answer
   x = 1,524.48