Finding the Fourth Proportional to 3,809.02, 5,256.78 and 2,317.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,809.02 : 5,256.78 = 2,317.30 : x
2. Step 2: Convert to fraction form
   3,809.02/5,256.78 = 2,317.30/x
3. Step 3: Cross multiply
   3,809.02x = 5,256.78 × 2,317.30
4. Step 4: Simplify right side
   3,809.02x = 12,181,536.29
5. Step 5: Solve for x
   x = 12,181,536.29/3,809.02
6. Step 6: Final answer
   x = 3,198.08