Finding the Fourth Proportional to 2,909.94, 4,365.72 and 829.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909.94 : 4,365.72 = 829.98 : x
2. Step 2: Convert to fraction form
   2,909.94/4,365.72 = 829.98/x
3. Step 3: Cross multiply
   2,909.94x = 4,365.72 × 829.98
4. Step 4: Simplify right side
   2,909.94x = 3,623,460.29
5. Step 5: Solve for x
   x = 3,623,460.29/2,909.94
6. Step 6: Final answer
   x = 1,245.20