Finding the Fourth Proportional to 855,762.69, 1,180,870.74 and 511,530.27

Step by Step Solution

1. Step 1: Write the proportion equation
   855,762.69 : 1,180,870.74 = 511,530.27 : x
2. Step 2: Convert to fraction form
   855,762.69/1,180,870.74 = 511,530.27/x
3. Step 3: Cross multiply
   855,762.69x = 1,180,870.74 × 511,530.27
4. Step 4: Simplify right side
   855,762.69x = 604,051,128,467.30
5. Step 5: Solve for x
   x = 604,051,128,467.30/855,762.69
6. Step 6: Final answer
   x = 705,862.89