Finding the Fourth Proportional to 6,290.62, 8,681.27 and 3,458.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,290.62 : 8,681.27 = 3,458.10 : x
2. Step 2: Convert to fraction form
   6,290.62/8,681.27 = 3,458.10/x
3. Step 3: Cross multiply
   6,290.62x = 8,681.27 × 3,458.10
4. Step 4: Simplify right side
   6,290.62x = 30,020,689.34
5. Step 5: Solve for x
   x = 30,020,689.34/6,290.62
6. Step 6: Final answer
   x = 4,772.29