Finding the Fourth Proportional to 3,978.52, 5,970.74 and 1,518.14

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.52 : 5,970.74 = 1,518.14 : x
2. Step 2: Convert to fraction form
   3,978.52/5,970.74 = 1,518.14/x
3. Step 3: Cross multiply
   3,978.52x = 5,970.74 × 1,518.14
4. Step 4: Simplify right side
   3,978.52x = 9,064,426.56
5. Step 5: Solve for x
   x = 9,064,426.56/3,978.52
6. Step 6: Final answer
   x = 2,278.34