Finding the Fourth Proportional to 2,177.20, 3,004.55 and 1,233.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.20 : 3,004.55 = 1,233.15 : x
2. Step 2: Convert to fraction form
   2,177.20/3,004.55 = 1,233.15/x
3. Step 3: Cross multiply
   2,177.20x = 3,004.55 × 1,233.15
4. Step 4: Simplify right side
   2,177.20x = 3,705,060.83
5. Step 5: Solve for x
   x = 3,705,060.83/2,177.20
6. Step 6: Final answer
   x = 1,701.75