Finding the Fourth Proportional to 1,285,059.73, 1,773,392.99 and 712,109.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,285,059.73 : 1,773,392.99 = 712,109.47 : x
2. Step 2: Convert to fraction form
   1,285,059.73/1,773,392.99 = 712,109.47/x
3. Step 3: Cross multiply
   1,285,059.73x = 1,773,392.99 × 712,109.47
4. Step 4: Simplify right side
   1,285,059.73x = 1,262,849,943,990.89
5. Step 5: Solve for x
   x = 1,262,849,943,990.89/1,285,059.73
6. Step 6: Final answer
   x = 982,716.92