Finding the Fourth Proportional to 1,007,009.55, 1,389,632.22 and 576,990.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,007,009.55 : 1,389,632.22 = 576,990.63 : x
2. Step 2: Convert to fraction form
   1,007,009.55/1,389,632.22 = 576,990.63/x
3. Step 3: Cross multiply
   1,007,009.55x = 1,389,632.22 × 576,990.63
4. Step 4: Simplify right side
   1,007,009.55x = 801,804,770,086.10
5. Step 5: Solve for x
   x = 801,804,770,086.10/1,007,009.55
6. Step 6: Final answer
   x = 796,223.60