Finding the Fourth Proportional to 1,308,809.81, 1,963,200.04 and 510,651.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,809.81 : 1,963,200.04 = 510,651.88 : x
2. Step 2: Convert to fraction form
   1,308,809.81/1,963,200.04 = 510,651.88/x
3. Step 3: Cross multiply
   1,308,809.81x = 1,963,200.04 × 510,651.88
4. Step 4: Simplify right side
   1,308,809.81x = 1,002,511,785,057.45
5. Step 5: Solve for x
   x = 1,002,511,785,057.45/1,308,809.81
6. Step 6: Final answer
   x = 765,972.09