Finding the Fourth Proportional to 3,693.72, 5,091.57 and 2,512.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,693.72 : 5,091.57 = 2,512.74 : x
2. Step 2: Convert to fraction form
   3,693.72/5,091.57 = 2,512.74/x
3. Step 3: Cross multiply
   3,693.72x = 5,091.57 × 2,512.74
4. Step 4: Simplify right side
   3,693.72x = 12,793,791.60
5. Step 5: Solve for x
   x = 12,793,791.60/3,693.72
6. Step 6: Final answer
   x = 3,463.66