Finding the Fourth Proportional to 3,180.16, 4,388.89 and 1,764.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,180.16 : 4,388.89 = 1,764.30 : x
2. Step 2: Convert to fraction form
   3,180.16/4,388.89 = 1,764.30/x
3. Step 3: Cross multiply
   3,180.16x = 4,388.89 × 1,764.30
4. Step 4: Simplify right side
   3,180.16x = 7,743,333.98
5. Step 5: Solve for x
   x = 7,743,333.98/3,180.16
6. Step 6: Final answer
   x = 2,434.89