Finding the Fourth Proportional to 2,012.30, 3,016.38 and 1,144.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.30 : 3,016.38 = 1,144.76 : x
2. Step 2: Convert to fraction form
   2,012.30/3,016.38 = 1,144.76/x
3. Step 3: Cross multiply
   2,012.30x = 3,016.38 × 1,144.76
4. Step 4: Simplify right side
   2,012.30x = 3,453,031.17
5. Step 5: Solve for x
   x = 3,453,031.17/2,012.30
6. Step 6: Final answer
   x = 1,715.96