Finding the Fourth Proportional to 3,180.31, 4,388.83 and 1,783.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,180.31 : 4,388.83 = 1,783.06 : x
2. Step 2: Convert to fraction form
   3,180.31/4,388.83 = 1,783.06/x
3. Step 3: Cross multiply
   3,180.31x = 4,388.83 × 1,783.06
4. Step 4: Simplify right side
   3,180.31x = 7,825,566.51
5. Step 5: Solve for x
   x = 7,825,566.51/3,180.31
6. Step 6: Final answer
   x = 2,460.63