Finding the Fourth Proportional to 2,978.56, 4,465.28 and 2,483.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.56 : 4,465.28 = 2,483.68 : x
2. Step 2: Convert to fraction form
   2,978.56/4,465.28 = 2,483.68/x
3. Step 3: Cross multiply
   2,978.56x = 4,465.28 × 2,483.68
4. Step 4: Simplify right side
   2,978.56x = 11,090,326.63
5. Step 5: Solve for x
   x = 11,090,326.63/2,978.56
6. Step 6: Final answer
   x = 3,723.39