Finding the Fourth Proportional to 3,066.69, 4,231.91 and 1,807.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,066.69 : 4,231.91 = 1,807.80 : x
2. Step 2: Convert to fraction form
   3,066.69/4,231.91 = 1,807.80/x
3. Step 3: Cross multiply
   3,066.69x = 4,231.91 × 1,807.80
4. Step 4: Simplify right side
   3,066.69x = 7,650,437.86
5. Step 5: Solve for x
   x = 7,650,437.86/3,066.69
6. Step 6: Final answer
   x = 2,494.69