Finding the Fourth Proportional to 989,612.43, 1,365,550.06 and 554,054.37

Step by Step Solution

1. Step 1: Write the proportion equation
   989,612.43 : 1,365,550.06 = 554,054.37 : x
2. Step 2: Convert to fraction form
   989,612.43/1,365,550.06 = 554,054.37/x
3. Step 3: Cross multiply
   989,612.43x = 1,365,550.06 × 554,054.37
4. Step 4: Simplify right side
   989,612.43x = 756,588,978,196.76
5. Step 5: Solve for x
   x = 756,588,978,196.76/989,612.43
6. Step 6: Final answer
   x = 764,530.59