Finding the Fourth Proportional to 2,325.86, 3,209.42 and 1,317.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,325.86 : 3,209.42 = 1,317.57 : x
2. Step 2: Convert to fraction form
   2,325.86/3,209.42 = 1,317.57/x
3. Step 3: Cross multiply
   2,325.86x = 3,209.42 × 1,317.57
4. Step 4: Simplify right side
   2,325.86x = 4,228,626.77
5. Step 5: Solve for x
   x = 4,228,626.77/2,325.86
6. Step 6: Final answer
   x = 1,818.09