Finding the Fourth Proportional to 3,890.88, 5,368.41 and 2,317.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890.88 : 5,368.41 = 2,317.86 : x
2. Step 2: Convert to fraction form
   3,890.88/5,368.41 = 2,317.86/x
3. Step 3: Cross multiply
   3,890.88x = 5,368.41 × 2,317.86
4. Step 4: Simplify right side
   3,890.88x = 12,443,222.80
5. Step 5: Solve for x
   x = 12,443,222.80/3,890.88
6. Step 6: Final answer
   x = 3,198.05