Finding the Fourth Proportional to 1,680,783.38, 2,521,196.94 and 558,852.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,783.38 : 2,521,196.94 = 558,852.38 : x
2. Step 2: Convert to fraction form
   1,680,783.38/2,521,196.94 = 558,852.38/x
3. Step 3: Cross multiply
   1,680,783.38x = 2,521,196.94 × 558,852.38
4. Step 4: Simplify right side
   1,680,783.38x = 1,408,976,910,367.72
5. Step 5: Solve for x
   x = 1,408,976,910,367.72/1,680,783.38
6. Step 6: Final answer
   x = 838,285.84