Finding the Fourth Proportional to 3,685.72, 5,080.53 and 2,504.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685.72 : 5,080.53 = 2,504.74 : x
2. Step 2: Convert to fraction form
   3,685.72/5,080.53 = 2,504.74/x
3. Step 3: Cross multiply
   3,685.72x = 5,080.53 × 2,504.74
4. Step 4: Simplify right side
   3,685.72x = 12,725,406.71
5. Step 5: Solve for x
   x = 12,725,406.71/3,685.72
6. Step 6: Final answer
   x = 3,452.62