Finding the Fourth Proportional to 2,131.12, 3,195.59 and 975.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.12 : 3,195.59 = 975.88 : x
2. Step 2: Convert to fraction form
   2,131.12/3,195.59 = 975.88/x
3. Step 3: Cross multiply
   2,131.12x = 3,195.59 × 975.88
4. Step 4: Simplify right side
   2,131.12x = 3,118,512.37
5. Step 5: Solve for x
   x = 3,118,512.37/2,131.12
6. Step 6: Final answer
   x = 1,463.32