Finding the Fourth Proportional to 2,504.80, 3,456.60 and 1,573.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.80 : 3,456.60 = 1,573.12 : x
2. Step 2: Convert to fraction form
   2,504.80/3,456.60 = 1,573.12/x
3. Step 3: Cross multiply
   2,504.80x = 3,456.60 × 1,573.12
4. Step 4: Simplify right side
   2,504.80x = 5,437,646.59
5. Step 5: Solve for x
   x = 5,437,646.59/2,504.80
6. Step 6: Final answer
   x = 2,170.89