Finding the Fourth Proportional to 708,729.42, 978,066.22 and 433,131.88

Step by Step Solution

1. Step 1: Write the proportion equation
   708,729.42 : 978,066.22 = 433,131.88 : x
2. Step 2: Convert to fraction form
   708,729.42/978,066.22 = 433,131.88/x
3. Step 3: Cross multiply
   708,729.42x = 978,066.22 × 433,131.88
4. Step 4: Simplify right side
   708,729.42x = 423,631,660,633.09
5. Step 5: Solve for x
   x = 423,631,660,633.09/708,729.42
6. Step 6: Final answer
   x = 597,733.99