Finding the Fourth Proportional to 2,218, 3,059.76 and 1,776.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218 : 3,059.76 = 1,776.46 : x
2. Step 2: Convert to fraction form
   2,218/3,059.76 = 1,776.46/x
3. Step 3: Cross multiply
   2,218x = 3,059.76 × 1,776.46
4. Step 4: Simplify right side
   2,218x = 5,435,541.25
5. Step 5: Solve for x
   x = 5,435,541.25/2,218
6. Step 6: Final answer
   x = 2,450.65