Finding the Fourth Proportional to 3,978.33, 5,968.71 and 1,383.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,978.33 : 5,968.71 = 1,383.09 : x
2. Step 2: Convert to fraction form
   3,978.33/5,968.71 = 1,383.09/x
3. Step 3: Cross multiply
   3,978.33x = 5,968.71 × 1,383.09
4. Step 4: Simplify right side
   3,978.33x = 8,255,263.11
5. Step 5: Solve for x
   x = 8,255,263.11/3,978.33
6. Step 6: Final answer
   x = 2,075.06