Finding the Fourth Proportional to 912,239.82, 1,258,681.69 and 544,645.34

Step by Step Solution

1. Step 1: Write the proportion equation
   912,239.82 : 1,258,681.69 = 544,645.34 : x
2. Step 2: Convert to fraction form
   912,239.82/1,258,681.69 = 544,645.34/x
3. Step 3: Cross multiply
   912,239.82x = 1,258,681.69 × 544,645.34
4. Step 4: Simplify right side
   912,239.82x = 685,535,117,001.83
5. Step 5: Solve for x
   x = 685,535,117,001.83/912,239.82
6. Step 6: Final answer
   x = 751,485.63