Finding the Fourth Proportional to 2,016.10, 2,782.11 and 1,177.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.10 : 2,782.11 = 1,177.12 : x
2. Step 2: Convert to fraction form
   2,016.10/2,782.11 = 1,177.12/x
3. Step 3: Cross multiply
   2,016.10x = 2,782.11 × 1,177.12
4. Step 4: Simplify right side
   2,016.10x = 3,274,877.32
5. Step 5: Solve for x
   x = 3,274,877.32/2,016.10
6. Step 6: Final answer
   x = 1,624.36