Finding the Fourth Proportional to 2,182.15, 3,272.87 and 1,012.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.15 : 3,272.87 = 1,012.11 : x
2. Step 2: Convert to fraction form
   2,182.15/3,272.87 = 1,012.11/x
3. Step 3: Cross multiply
   2,182.15x = 3,272.87 × 1,012.11
4. Step 4: Simplify right side
   2,182.15x = 3,312,483.03
5. Step 5: Solve for x
   x = 3,312,483.03/2,182.15
6. Step 6: Final answer
   x = 1,517.99