Finding the Fourth Proportional to 3,684.72, 5,079.15 and 2,503.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,684.72 : 5,079.15 = 2,503.74 : x
2. Step 2: Convert to fraction form
   3,684.72/5,079.15 = 2,503.74/x
3. Step 3: Cross multiply
   3,684.72x = 5,079.15 × 2,503.74
4. Step 4: Simplify right side
   3,684.72x = 12,716,871.02
5. Step 5: Solve for x
   x = 12,716,871.02/3,684.72
6. Step 6: Final answer
   x = 3,451.24