Finding the Fourth Proportional to 2,613, 3,919.50 and 1,074

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613 : 3,919.50 = 1,074 : x
2. Step 2: Convert to fraction form
   2,613/3,919.50 = 1,074/x
3. Step 3: Cross multiply
   2,613x = 3,919.50 × 1,074
4. Step 4: Simplify right side
   2,613x = 4,209,543
5. Step 5: Solve for x
   x = 4,209,543/2,613
6. Step 6: Final answer
   x = 1,611