Finding the Fourth Proportional to 3,978.63, 5,964.57 and 2,514.51

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.63 : 5,964.57 = 2,514.51 : x
2. Step 2: Convert to fraction form
   3,978.63/5,964.57 = 2,514.51/x
3. Step 3: Cross multiply
   3,978.63x = 5,964.57 × 2,514.51
4. Step 4: Simplify right side
   3,978.63x = 14,997,970.91
5. Step 5: Solve for x
   x = 14,997,970.91/3,978.63
6. Step 6: Final answer
   x = 3,769.63