Finding the Fourth Proportional to 4,085.86, 5,638.29 and 2,317.30

Step by Step Solution

1. Step 1: Write the proportion equation
   4,085.86 : 5,638.29 = 2,317.30 : x
2. Step 2: Convert to fraction form
   4,085.86/5,638.29 = 2,317.30/x
3. Step 3: Cross multiply
   4,085.86x = 5,638.29 × 2,317.30
4. Step 4: Simplify right side
   4,085.86x = 13,065,609.42
5. Step 5: Solve for x
   x = 13,065,609.42/4,085.86
6. Step 6: Final answer
   x = 3,197.76