Finding the Fourth Proportional to 2,004.32, 2,760.80 and 1,890.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.32 : 2,760.80 = 1,890.24 : x
2. Step 2: Convert to fraction form
   2,004.32/2,760.80 = 1,890.24/x
3. Step 3: Cross multiply
   2,004.32x = 2,760.80 × 1,890.24
4. Step 4: Simplify right side
   2,004.32x = 5,218,574.59
5. Step 5: Solve for x
   x = 5,218,574.59/2,004.32
6. Step 6: Final answer
   x = 2,603.66