Finding the Fourth Proportional to 2,182.50, 3,275.78 and 1,013.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,182.50 : 3,275.78 = 1,013.13 : x
2. Step 2: Convert to fraction form
   2,182.50/3,275.78 = 1,013.13/x
3. Step 3: Cross multiply
   2,182.50x = 3,275.78 × 1,013.13
4. Step 4: Simplify right side
   2,182.50x = 3,318,785.93
5. Step 5: Solve for x
   x = 3,318,785.93/2,182.50
6. Step 6: Final answer
   x = 1,520.64