Finding the Fourth Proportional to 2,178.82, 3,274.71 and 2,017.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178.82 : 3,274.71 = 2,017.90 : x
2. Step 2: Convert to fraction form
   2,178.82/3,274.71 = 2,017.90/x
3. Step 3: Cross multiply
   2,178.82x = 3,274.71 × 2,017.90
4. Step 4: Simplify right side
   2,178.82x = 6,608,037.31
5. Step 5: Solve for x
   x = 6,608,037.31/2,178.82
6. Step 6: Final answer
   x = 3,032.85