Finding the Fourth Proportional to 2,016.18, 2,777.76 and 1,316.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.18 : 2,777.76 = 1,316.34 : x
2. Step 2: Convert to fraction form
   2,016.18/2,777.76 = 1,316.34/x
3. Step 3: Cross multiply
   2,016.18x = 2,777.76 × 1,316.34
4. Step 4: Simplify right side
   2,016.18x = 3,656,476.60
5. Step 5: Solve for x
   x = 3,656,476.60/2,016.18
6. Step 6: Final answer
   x = 1,813.57