Finding the Fourth Proportional to 1,285,059.32, 1,773,392.28 and 712,109.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,285,059.32 : 1,773,392.28 = 712,109.06 : x
2. Step 2: Convert to fraction form
   1,285,059.32/1,773,392.28 = 712,109.06/x
3. Step 3: Cross multiply
   1,285,059.32x = 1,773,392.28 × 712,109.06
4. Step 4: Simplify right side
   1,285,059.32x = 1,262,848,709,522.06
5. Step 5: Solve for x
   x = 1,262,848,709,522.06/1,285,059.32
6. Step 6: Final answer
   x = 982,716.28