Finding the Fourth Proportional to 2,017.38, 3,027.88 and 1,690.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.38 : 3,027.88 = 1,690.32 : x
2. Step 2: Convert to fraction form
   2,017.38/3,027.88 = 1,690.32/x
3. Step 3: Cross multiply
   2,017.38x = 3,027.88 × 1,690.32
4. Step 4: Simplify right side
   2,017.38x = 5,118,086.12
5. Step 5: Solve for x
   x = 5,118,086.12/2,017.38
6. Step 6: Final answer
   x = 2,537.00