Finding the Fourth Proportional to 2,301.90, 3,179.83 and 2,216.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,301.90 : 3,179.83 = 2,216.56 : x
2. Step 2: Convert to fraction form
   2,301.90/3,179.83 = 2,216.56/x
3. Step 3: Cross multiply
   2,301.90x = 3,179.83 × 2,216.56
4. Step 4: Simplify right side
   2,301.90x = 7,048,283.98
5. Step 5: Solve for x
   x = 7,048,283.98/2,301.90
6. Step 6: Final answer
   x = 3,061.94