Finding the Fourth Proportional to 1,284,784.80, 1,773,017.28 and 711,834

Step by Step Solution

1. Step 1: Write the proportion equation
   1,284,784.80 : 1,773,017.28 = 711,834 : x
2. Step 2: Convert to fraction form
   1,284,784.80/1,773,017.28 = 711,834/x
3. Step 3: Cross multiply
   1,284,784.80x = 1,773,017.28 × 711,834
4. Step 4: Simplify right side
   1,284,784.80x = 1,262,093,982,491.52
5. Step 5: Solve for x
   x = 1,262,093,982,491.52/1,284,784.80
6. Step 6: Final answer
   x = 982,338.82