Finding the Fourth Proportional to 2,016.70, 2,782.96 and 1,177.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.70 : 2,782.96 = 1,177.45 : x
2. Step 2: Convert to fraction form
   2,016.70/2,782.96 = 1,177.45/x
3. Step 3: Cross multiply
   2,016.70x = 2,782.96 × 1,177.45
4. Step 4: Simplify right side
   2,016.70x = 3,276,796.25
5. Step 5: Solve for x
   x = 3,276,796.25/2,016.70
6. Step 6: Final answer
   x = 1,624.83