Finding the Fourth Proportional to 2,179.92, 3,009.71 and 1,782.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.92 : 3,009.71 = 1,782.55 : x
2. Step 2: Convert to fraction form
   2,179.92/3,009.71 = 1,782.55/x
3. Step 3: Cross multiply
   2,179.92x = 3,009.71 × 1,782.55
4. Step 4: Simplify right side
   2,179.92x = 5,364,958.56
5. Step 5: Solve for x
   x = 5,364,958.56/2,179.92
6. Step 6: Final answer
   x = 2,461.08