Finding the Fourth Proportional to 1,385,718.86, 1,912,271.83 and 773,865.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,718.86 : 1,912,271.83 = 773,865.15 : x
2. Step 2: Convert to fraction form
   1,385,718.86/1,912,271.83 = 773,865.15/x
3. Step 3: Cross multiply
   1,385,718.86x = 1,912,271.83 × 773,865.15
4. Step 4: Simplify right side
   1,385,718.86x = 1,479,840,526,563.72
5. Step 5: Solve for x
   x = 1,479,840,526,563.72/1,385,718.86
6. Step 6: Final answer
   x = 1,067,922.63