Finding the Fourth Proportional to 2,874.76, 4,308.71 and 1,313.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.76 : 4,308.71 = 1,313.33 : x
2. Step 2: Convert to fraction form
   2,874.76/4,308.71 = 1,313.33/x
3. Step 3: Cross multiply
   2,874.76x = 4,308.71 × 1,313.33
4. Step 4: Simplify right side
   2,874.76x = 5,658,729.99
5. Step 5: Solve for x
   x = 5,658,729.99/2,874.76
6. Step 6: Final answer
   x = 1,968.42