Finding the Fourth Proportional to 1,890.50, 2,609.54 and 1,173.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.50 : 2,609.54 = 1,173.24 : x
2. Step 2: Convert to fraction form
   1,890.50/2,609.54 = 1,173.24/x
3. Step 3: Cross multiply
   1,890.50x = 2,609.54 × 1,173.24
4. Step 4: Simplify right side
   1,890.50x = 3,061,616.71
5. Step 5: Solve for x
   x = 3,061,616.71/1,890.50
6. Step 6: Final answer
   x = 1,619.47