Finding the Fourth Proportional to 2,004.55, 2,802.72 and 2,004.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.55 : 2,802.72 = 2,004.55 : x
2. Step 2: Convert to fraction form
   2,004.55/2,802.72 = 2,004.55/x
3. Step 3: Cross multiply
   2,004.55x = 2,802.72 × 2,004.55
4. Step 4: Simplify right side
   2,004.55x = 5,618,192.38
5. Step 5: Solve for x
   x = 5,618,192.38/2,004.55
6. Step 6: Final answer
   x = 2,802.72