Finding the Fourth Proportional to 2,131.01, 3,195.02 and 814.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.01 : 3,195.02 = 814.71 : x
2. Step 2: Convert to fraction form
   2,131.01/3,195.02 = 814.71/x
3. Step 3: Cross multiply
   2,131.01x = 3,195.02 × 814.71
4. Step 4: Simplify right side
   2,131.01x = 2,603,008.50
5. Step 5: Solve for x
   x = 2,603,008.50/2,131.01
6. Step 6: Final answer
   x = 1,221.49