Finding the Fourth Proportional to 2,004.80, 3,008.55 and 1,127.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.80 : 3,008.55 = 1,127.30 : x
2. Step 2: Convert to fraction form
   2,004.80/3,008.55 = 1,127.30/x
3. Step 3: Cross multiply
   2,004.80x = 3,008.55 × 1,127.30
4. Step 4: Simplify right side
   2,004.80x = 3,391,538.42
5. Step 5: Solve for x
   x = 3,391,538.42/2,004.80
6. Step 6: Final answer
   x = 1,691.71