Finding the Fourth Proportional to 2,423.29, 3,634.59 and 779.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.29 : 3,634.59 = 779.98 : x
2. Step 2: Convert to fraction form
   2,423.29/3,634.59 = 779.98/x
3. Step 3: Cross multiply
   2,423.29x = 3,634.59 × 779.98
4. Step 4: Simplify right side
   2,423.29x = 2,834,907.51
5. Step 5: Solve for x
   x = 2,834,907.51/2,423.29
6. Step 6: Final answer
   x = 1,169.86