Finding the Fourth Proportional to 2,017.10, 2,784.33 and 1,806.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.10 : 2,784.33 = 1,806.90 : x
2. Step 2: Convert to fraction form
   2,017.10/2,784.33 = 1,806.90/x
3. Step 3: Cross multiply
   2,017.10x = 2,784.33 × 1,806.90
4. Step 4: Simplify right side
   2,017.10x = 5,031,005.88
5. Step 5: Solve for x
   x = 5,031,005.88/2,017.10
6. Step 6: Final answer
   x = 2,494.18