Finding the Fourth Proportional to 2,574.84, 3,553.38 and 1,579.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.84 : 3,553.38 = 1,579.80 : x
2. Step 2: Convert to fraction form
   2,574.84/3,553.38 = 1,579.80/x
3. Step 3: Cross multiply
   2,574.84x = 3,553.38 × 1,579.80
4. Step 4: Simplify right side
   2,574.84x = 5,613,629.72
5. Step 5: Solve for x
   x = 5,613,629.72/2,574.84
6. Step 6: Final answer
   x = 2,180.19