Finding the Fourth Proportional to 3,621.52, 4,993.32 and 3,061

Step by Step Solution

1. Step 1: Write the proportion equation
   3,621.52 : 4,993.32 = 3,061 : x
2. Step 2: Convert to fraction form
   3,621.52/4,993.32 = 3,061/x
3. Step 3: Cross multiply
   3,621.52x = 4,993.32 × 3,061
4. Step 4: Simplify right side
   3,621.52x = 15,284,552.52
5. Step 5: Solve for x
   x = 15,284,552.52/3,621.52
6. Step 6: Final answer
   x = 4,220.48