Finding the Fourth Proportional to 2,923.50, 4,385 and 1,074.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,923.50 : 4,385 = 1,074.54 : x
2. Step 2: Convert to fraction form
   2,923.50/4,385 = 1,074.54/x
3. Step 3: Cross multiply
   2,923.50x = 4,385 × 1,074.54
4. Step 4: Simplify right side
   2,923.50x = 4,711,857.90
5. Step 5: Solve for x
   x = 4,711,857.90/2,923.50
6. Step 6: Final answer
   x = 1,611.72