Finding the Fourth Proportional to 3,978.15, 5,967.87 and 1,345.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.15 : 5,967.87 = 1,345.82 : x
2. Step 2: Convert to fraction form
   3,978.15/5,967.87 = 1,345.82/x
3. Step 3: Cross multiply
   3,978.15x = 5,967.87 × 1,345.82
4. Step 4: Simplify right side
   3,978.15x = 8,031,668.93
5. Step 5: Solve for x
   x = 8,031,668.93/3,978.15
6. Step 6: Final answer
   x = 2,018.94