Finding the Fourth Proportional to 3,997.07, 5,513.71 and 2,502.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,997.07 : 5,513.71 = 2,502.40 : x
2. Step 2: Convert to fraction form
   3,997.07/5,513.71 = 2,502.40/x
3. Step 3: Cross multiply
   3,997.07x = 5,513.71 × 2,502.40
4. Step 4: Simplify right side
   3,997.07x = 13,797,487.86
5. Step 5: Solve for x
   x = 13,797,487.86/3,997.07
6. Step 6: Final answer
   x = 3,451.90