Finding the Fourth Proportional to 1,061,571.98, 1,590,783.31 and 779,711.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061,571.98 : 1,590,783.31 = 779,711.42 : x
2. Step 2: Convert to fraction form
   1,061,571.98/1,590,783.31 = 779,711.42/x
3. Step 3: Cross multiply
   1,061,571.98x = 1,590,783.31 × 779,711.42
4. Step 4: Simplify right side
   1,061,571.98x = 1,240,351,903,649.21
5. Step 5: Solve for x
   x = 1,240,351,903,649.21/1,061,571.98
6. Step 6: Final answer
   x = 1,168,410.56