Finding the Fourth Proportional to 2,011.68, 3,010.50 and 1,231.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.68 : 3,010.50 = 1,231.34 : x
2. Step 2: Convert to fraction form
   2,011.68/3,010.50 = 1,231.34/x
3. Step 3: Cross multiply
   2,011.68x = 3,010.50 × 1,231.34
4. Step 4: Simplify right side
   2,011.68x = 3,706,934.02
5. Step 5: Solve for x
   x = 3,706,934.02/2,011.68
6. Step 6: Final answer
   x = 1,842.71