Finding the Fourth Proportional to 1,285,059.61, 1,773,392.82 and 712,109.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,285,059.61 : 1,773,392.82 = 712,109.35 : x
2. Step 2: Convert to fraction form
   1,285,059.61/1,773,392.82 = 712,109.35/x
3. Step 3: Cross multiply
   1,285,059.61x = 1,773,392.82 × 712,109.35
4. Step 4: Simplify right side
   1,285,059.61x = 1,262,849,599,477.90
5. Step 5: Solve for x
   x = 1,262,849,599,477.90/1,285,059.61
6. Step 6: Final answer
   x = 982,716.75