Finding the Fourth Proportional to 4,341.35, 6,499.55 and 3,890.59

Step by Step Solution

1. Step 1: Write the proportion equation
   4,341.35 : 6,499.55 = 3,890.59 : x
2. Step 2: Convert to fraction form
   4,341.35/6,499.55 = 3,890.59/x
3. Step 3: Cross multiply
   4,341.35x = 6,499.55 × 3,890.59
4. Step 4: Simplify right side
   4,341.35x = 25,287,077.71
5. Step 5: Solve for x
   x = 25,287,077.71/4,341.35
6. Step 6: Final answer
   x = 5,824.70