Finding the Fourth Proportional to 4,290.39, 6,428.91 and 2,066.82

Step by Step Solution

1. Step 1: Write the proportion equation
   4,290.39 : 6,428.91 = 2,066.82 : x
2. Step 2: Convert to fraction form
   4,290.39/6,428.91 = 2,066.82/x
3. Step 3: Cross multiply
   4,290.39x = 6,428.91 × 2,066.82
4. Step 4: Simplify right side
   4,290.39x = 13,287,399.77
5. Step 5: Solve for x
   x = 13,287,399.77/4,290.39
6. Step 6: Final answer
   x = 3,097.02