Finding the Fourth Proportional to 1,288,573.27, 1,780,141.02 and 848,086.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,573.27 : 1,780,141.02 = 848,086.56 : x
2. Step 2: Convert to fraction form
   1,288,573.27/1,780,141.02 = 848,086.56/x
3. Step 3: Cross multiply
   1,288,573.27x = 1,780,141.02 × 848,086.56
4. Step 4: Simplify right side
   1,288,573.27x = 1,509,713,670,786.37
5. Step 5: Solve for x
   x = 1,509,713,670,786.37/1,288,573.27
6. Step 6: Final answer
   x = 1,171,616.48