Finding the Fourth Proportional to 1,399,156.50, 2,098,613.88 and 851,906.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,156.50 : 2,098,613.88 = 851,906.82 : x
2. Step 2: Convert to fraction form
   1,399,156.50/2,098,613.88 = 851,906.82/x
3. Step 3: Cross multiply
   1,399,156.50x = 2,098,613.88 × 851,906.82
4. Step 4: Simplify right side
   1,399,156.50x = 1,787,823,476,918.66
5. Step 5: Solve for x
   x = 1,787,823,476,918.66/1,399,156.50
6. Step 6: Final answer
   x = 1,277,786.64