Finding the Fourth Proportional to 2,004.42, 2,986.47 and 1,892.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.42 : 2,986.47 = 1,892.64 : x
2. Step 2: Convert to fraction form
   2,004.42/2,986.47 = 1,892.64/x
3. Step 3: Cross multiply
   2,004.42x = 2,986.47 × 1,892.64
4. Step 4: Simplify right side
   2,004.42x = 5,652,312.58
5. Step 5: Solve for x
   x = 5,652,312.58/2,004.42
6. Step 6: Final answer
   x = 2,819.92