Finding the Fourth Proportional to 2,131.74, 3,196.53 and 976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.74 : 3,196.53 = 976.50 : x
2. Step 2: Convert to fraction form
   2,131.74/3,196.53 = 976.50/x
3. Step 3: Cross multiply
   2,131.74x = 3,196.53 × 976.50
4. Step 4: Simplify right side
   2,131.74x = 3,121,411.55
5. Step 5: Solve for x
   x = 3,121,411.55/2,131.74
6. Step 6: Final answer
   x = 1,464.26