Finding the Fourth Proportional to 2,180.79, 3,010.61 and 1,682.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.79 : 3,010.61 = 1,682.31 : x
2. Step 2: Convert to fraction form
   2,180.79/3,010.61 = 1,682.31/x
3. Step 3: Cross multiply
   2,180.79x = 3,010.61 × 1,682.31
4. Step 4: Simplify right side
   2,180.79x = 5,064,770.90
5. Step 5: Solve for x
   x = 5,064,770.90/2,180.79
6. Step 6: Final answer
   x = 2,322.45