Finding the Fourth Proportional to 2,209.98, 3,315.83 and 976.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,209.98 : 3,315.83 = 976.52 : x
2. Step 2: Convert to fraction form
   2,209.98/3,315.83 = 976.52/x
3. Step 3: Cross multiply
   2,209.98x = 3,315.83 × 976.52
4. Step 4: Simplify right side
   2,209.98x = 3,237,952.85
5. Step 5: Solve for x
   x = 3,237,952.85/2,209.98
6. Step 6: Final answer
   x = 1,465.15