Finding the Fourth Proportional to 2,004.51, 3,006.78 and 1,520.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.51 : 3,006.78 = 1,520.55 : x
2. Step 2: Convert to fraction form
   2,004.51/3,006.78 = 1,520.55/x
3. Step 3: Cross multiply
   2,004.51x = 3,006.78 × 1,520.55
4. Step 4: Simplify right side
   2,004.51x = 4,571,959.33
5. Step 5: Solve for x
   x = 4,571,959.33/2,004.51
6. Step 6: Final answer
   x = 2,280.84