Finding the Fourth Proportional to 2,131.49, 3,196.16 and 976.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.49 : 3,196.16 = 976.25 : x
2. Step 2: Convert to fraction form
   2,131.49/3,196.16 = 976.25/x
3. Step 3: Cross multiply
   2,131.49x = 3,196.16 × 976.25
4. Step 4: Simplify right side
   2,131.49x = 3,120,246.32
5. Step 5: Solve for x
   x = 3,120,246.32/2,131.49
6. Step 6: Final answer
   x = 1,463.88