Finding the Fourth Proportional to 1,259,068.56, 1,737,514.64 and 686,108.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,259,068.56 : 1,737,514.64 = 686,108.56 : x
2. Step 2: Convert to fraction form
   1,259,068.56/1,737,514.64 = 686,108.56/x
3. Step 3: Cross multiply
   1,259,068.56x = 1,737,514.64 × 686,108.56
4. Step 4: Simplify right side
   1,259,068.56x = 1,192,123,667,629.32
5. Step 5: Solve for x
   x = 1,192,123,667,629.32/1,259,068.56
6. Step 6: Final answer
   x = 946,829.83