Finding the Fourth Proportional to 3,610.32, 4,983.28 and 2,118.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,610.32 : 4,983.28 = 2,118.30 : x
2. Step 2: Convert to fraction form
   3,610.32/4,983.28 = 2,118.30/x
3. Step 3: Cross multiply
   3,610.32x = 4,983.28 × 2,118.30
4. Step 4: Simplify right side
   3,610.32x = 10,556,082.02
5. Step 5: Solve for x
   x = 10,556,082.02/3,610.32
6. Step 6: Final answer
   x = 2,923.86