Finding the Fourth Proportional to 2,981.69, 4,474.05 and 2,255.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,981.69 : 4,474.05 = 2,255.72 : x
2. Step 2: Convert to fraction form
   2,981.69/4,474.05 = 2,255.72/x
3. Step 3: Cross multiply
   2,981.69x = 4,474.05 × 2,255.72
4. Step 4: Simplify right side
   2,981.69x = 10,092,215.25
5. Step 5: Solve for x
   x = 10,092,215.25/2,981.69
6. Step 6: Final answer
   x = 3,384.74