Finding the Fourth Proportional to 1,039,186.98, 1,557,614.52 and 680,048.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,186.98 : 1,557,614.52 = 680,048.82 : x
2. Step 2: Convert to fraction form
   1,039,186.98/1,557,614.52 = 680,048.82/x
3. Step 3: Cross multiply
   1,039,186.98x = 1,557,614.52 × 680,048.82
4. Step 4: Simplify right side
   1,039,186.98x = 1,059,253,916,340.87
5. Step 5: Solve for x
   x = 1,059,253,916,340.87/1,039,186.98
6. Step 6: Final answer
   x = 1,019,310.23