Finding the Fourth Proportional to 3,640.67, 5,018.83 and 2,575.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.67 : 5,018.83 = 2,575.12 : x
2. Step 2: Convert to fraction form
   3,640.67/5,018.83 = 2,575.12/x
3. Step 3: Cross multiply
   3,640.67x = 5,018.83 × 2,575.12
4. Step 4: Simplify right side
   3,640.67x = 12,924,089.51
5. Step 5: Solve for x
   x = 12,924,089.51/3,640.67
6. Step 6: Final answer
   x = 3,549.92