Finding the Fourth Proportional to 1,636,071.33, 2,454,458.79 and 815,856.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636,071.33 : 2,454,458.79 = 815,856.89 : x
2. Step 2: Convert to fraction form
   1,636,071.33/2,454,458.79 = 815,856.89/x
3. Step 3: Cross multiply
   1,636,071.33x = 2,454,458.79 × 815,856.89
4. Step 4: Simplify right side
   1,636,071.33x = 2,002,487,105,829.73
5. Step 5: Solve for x
   x = 2,002,487,105,829.73/1,636,071.33
6. Step 6: Final answer
   x = 1,223,960.76