Finding the Fourth Proportional to 1,357,665, 2,036,759.52 and 516,151.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,665 : 2,036,759.52 = 516,151.20 : x
2. Step 2: Convert to fraction form
   1,357,665/2,036,759.52 = 516,151.20/x
3. Step 3: Cross multiply
   1,357,665x = 2,036,759.52 × 516,151.20
4. Step 4: Simplify right side
   1,357,665x = 1,051,275,870,359.42
5. Step 5: Solve for x
   x = 1,051,275,870,359.42/1,357,665
6. Step 6: Final answer
   x = 774,326.41