Finding the Fourth Proportional to 1,227,840.78, 1,694,471.33 and 683,976.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,227,840.78 : 1,694,471.33 = 683,976.43 : x
2. Step 2: Convert to fraction form
   1,227,840.78/1,694,471.33 = 683,976.43/x
3. Step 3: Cross multiply
   1,227,840.78x = 1,694,471.33 × 683,976.43
4. Step 4: Simplify right side
   1,227,840.78x = 1,158,978,454,858.78
5. Step 5: Solve for x
   x = 1,158,978,454,858.78/1,227,840.78
6. Step 6: Final answer
   x = 943,915.91