Finding the Fourth Proportional to 1,258,900.42, 1,737,233.82 and 685,944.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,258,900.42 : 1,737,233.82 = 685,944.88 : x
2. Step 2: Convert to fraction form
   1,258,900.42/1,737,233.82 = 685,944.88/x
3. Step 3: Cross multiply
   1,258,900.42x = 1,737,233.82 × 685,944.88
4. Step 4: Simplify right side
   1,258,900.42x = 1,191,646,644,191.84
5. Step 5: Solve for x
   x = 1,191,646,644,191.84/1,258,900.42
6. Step 6: Final answer
   x = 946,577.37