Finding the Fourth Proportional to 4,012.50, 6,018.02 and 1,820.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,012.50 : 6,018.02 = 1,820.72 : x
2. Step 2: Convert to fraction form
   4,012.50/6,018.02 = 1,820.72/x
3. Step 3: Cross multiply
   4,012.50x = 6,018.02 × 1,820.72
4. Step 4: Simplify right side
   4,012.50x = 10,957,129.37
5. Step 5: Solve for x
   x = 10,957,129.37/4,012.50
6. Step 6: Final answer
   x = 2,730.75