Finding the Fourth Proportional to 2,012.48, 3,016.38 and 1,191.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.48 : 3,016.38 = 1,191.45 : x
2. Step 2: Convert to fraction form
   2,012.48/3,016.38 = 1,191.45/x
3. Step 3: Cross multiply
   2,012.48x = 3,016.38 × 1,191.45
4. Step 4: Simplify right side
   2,012.48x = 3,593,865.95
5. Step 5: Solve for x
   x = 3,593,865.95/2,012.48
6. Step 6: Final answer
   x = 1,785.79