Finding the Fourth Proportional to 2,993.48, 4,122.42 and 2,983.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,993.48 : 4,122.42 = 2,983.76 : x
2. Step 2: Convert to fraction form
   2,993.48/4,122.42 = 2,983.76/x
3. Step 3: Cross multiply
   2,993.48x = 4,122.42 × 2,983.76
4. Step 4: Simplify right side
   2,993.48x = 12,300,311.90
5. Step 5: Solve for x
   x = 12,300,311.90/2,993.48
6. Step 6: Final answer
   x = 4,109.03