Finding the Fourth Proportional to 1,890.29, 2,609.06 and 1,104.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.29 : 2,609.06 = 1,104.45 : x
2. Step 2: Convert to fraction form
   1,890.29/2,609.06 = 1,104.45/x
3. Step 3: Cross multiply
   1,890.29x = 2,609.06 × 1,104.45
4. Step 4: Simplify right side
   1,890.29x = 2,881,570.79
5. Step 5: Solve for x
   x = 2,881,570.79/1,890.29
6. Step 6: Final answer
   x = 1,524.41