Finding the Fourth Proportional to 2,140,951.69, 3,211,557.25 and 861,554.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,140,951.69 : 3,211,557.25 = 861,554.26 : x
2. Step 2: Convert to fraction form
   2,140,951.69/3,211,557.25 = 861,554.26/x
3. Step 3: Cross multiply
   2,140,951.69x = 3,211,557.25 × 861,554.26
4. Step 4: Simplify right side
   2,140,951.69x = 2,766,930,829,971.39
5. Step 5: Solve for x
   x = 2,766,930,829,971.39/2,140,951.69
6. Step 6: Final answer
   x = 1,292,383.59