Finding the Fourth Proportional to 3,162.56, 4,745.52 and 2,120

Step by Step Solution

1. Step 1: Write the proportion equation
   3,162.56 : 4,745.52 = 2,120 : x
2. Step 2: Convert to fraction form
   3,162.56/4,745.52 = 2,120/x
3. Step 3: Cross multiply
   3,162.56x = 4,745.52 × 2,120
4. Step 4: Simplify right side
   3,162.56x = 10,060,502.40
5. Step 5: Solve for x
   x = 10,060,502.40/3,162.56
6. Step 6: Final answer
   x = 3,181.13