Finding the Fourth Proportional to 2,978.56, 4,463.40 and 2,248.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.56 : 4,463.40 = 2,248.63 : x
2. Step 2: Convert to fraction form
   2,978.56/4,463.40 = 2,248.63/x
3. Step 3: Cross multiply
   2,978.56x = 4,463.40 × 2,248.63
4. Step 4: Simplify right side
   2,978.56x = 10,036,535.14
5. Step 5: Solve for x
   x = 10,036,535.14/2,978.56
6. Step 6: Final answer
   x = 3,369.59