Finding the Fourth Proportional to 1,014,020.56, 1,399,346.18 and 555,131.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014,020.56 : 1,399,346.18 = 555,131.43 : x
2. Step 2: Convert to fraction form
   1,014,020.56/1,399,346.18 = 555,131.43/x
3. Step 3: Cross multiply
   1,014,020.56x = 1,399,346.18 × 555,131.43
4. Step 4: Simplify right side
   1,014,020.56x = 776,821,036,196.05
5. Step 5: Solve for x
   x = 776,821,036,196.05/1,014,020.56
6. Step 6: Final answer
   x = 766,080.16