Finding the Fourth Proportional to 5,300.69, 7,951.25 and 1,790.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.69 : 7,951.25 = 1,790.78 : x
2. Step 2: Convert to fraction form
   5,300.69/7,951.25 = 1,790.78/x
3. Step 3: Cross multiply
   5,300.69x = 7,951.25 × 1,790.78
4. Step 4: Simplify right side
   5,300.69x = 14,238,904.20
5. Step 5: Solve for x
   x = 14,238,904.20/5,300.69
6. Step 6: Final answer
   x = 2,686.24