Finding the Fourth Proportional to 1,890.71, 2,609.37 and 1,104.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.71 : 2,609.37 = 1,104.74 : x
2. Step 2: Convert to fraction form
   1,890.71/2,609.37 = 1,104.74/x
3. Step 3: Cross multiply
   1,890.71x = 2,609.37 × 1,104.74
4. Step 4: Simplify right side
   1,890.71x = 2,882,662.37
5. Step 5: Solve for x
   x = 2,882,662.37/1,890.71
6. Step 6: Final answer
   x = 1,524.65