Finding the Fourth Proportional to 1,015,793.15, 1,401,786.78 and 556,902.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,793.15 : 1,401,786.78 = 556,902.23 : x
2. Step 2: Convert to fraction form
   1,015,793.15/1,401,786.78 = 556,902.23/x
3. Step 3: Cross multiply
   1,015,793.15x = 1,401,786.78 × 556,902.23
4. Step 4: Simplify right side
   1,015,793.15x = 780,658,183,766.52
5. Step 5: Solve for x
   x = 780,658,183,766.52/1,015,793.15
6. Step 6: Final answer
   x = 768,520.82