Finding the Fourth Proportional to 1,385,578.80, 1,912,061.49 and 773,714.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,578.80 : 1,912,061.49 = 773,714.52 : x
2. Step 2: Convert to fraction form
   1,385,578.80/1,912,061.49 = 773,714.52/x
3. Step 3: Cross multiply
   1,385,578.80x = 1,912,061.49 × 773,714.52
4. Step 4: Simplify right side
   1,385,578.80x = 1,479,389,737,945.83
5. Step 5: Solve for x
   x = 1,479,389,737,945.83/1,385,578.80
6. Step 6: Final answer
   x = 1,067,705.23