Finding the Fourth Proportional to 788,456.32, 1,182,667.20 and 339,475.84

Step by Step Solution

1. Step 1: Write the proportion equation
   788,456.32 : 1,182,667.20 = 339,475.84 : x
2. Step 2: Convert to fraction form
   788,456.32/1,182,667.20 = 339,475.84/x
3. Step 3: Cross multiply
   788,456.32x = 1,182,667.20 × 339,475.84
4. Step 4: Simplify right side
   788,456.32x = 401,486,941,160.45
5. Step 5: Solve for x
   x = 401,486,941,160.45/788,456.32
6. Step 6: Final answer
   x = 509,206.32