Finding the Fourth Proportional to 5,007.60, 7,513.56 and 2,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,007.60 : 7,513.56 = 2,086.56 : x
2. Step 2: Convert to fraction form
   5,007.60/7,513.56 = 2,086.56/x
3. Step 3: Cross multiply
   5,007.60x = 7,513.56 × 2,086.56
4. Step 4: Simplify right side
   5,007.60x = 15,677,493.75
5. Step 5: Solve for x
   x = 15,677,493.75/5,007.60
6. Step 6: Final answer
   x = 3,130.74