Finding the Fourth Proportional to 5,188.88, 7,783.37 and 1,293.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,188.88 : 7,783.37 = 1,293.27 : x
2. Step 2: Convert to fraction form
   5,188.88/7,783.37 = 1,293.27/x
3. Step 3: Cross multiply
   5,188.88x = 7,783.37 × 1,293.27
4. Step 4: Simplify right side
   5,188.88x = 10,065,992.45
5. Step 5: Solve for x
   x = 10,065,992.45/5,188.88
6. Step 6: Final answer
   x = 1,939.92