Finding the Fourth Proportional to 2,004.42, 3,021.60 and 1,870.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.42 : 3,021.60 = 1,870.62 : x
2. Step 2: Convert to fraction form
   2,004.42/3,021.60 = 1,870.62/x
3. Step 3: Cross multiply
   2,004.42x = 3,021.60 × 1,870.62
4. Step 4: Simplify right side
   2,004.42x = 5,652,265.39
5. Step 5: Solve for x
   x = 5,652,265.39/2,004.42
6. Step 6: Final answer
   x = 2,819.90