Finding the Fourth Proportional to 2,116.17, 3,173.88 and 655.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.17 : 3,173.88 = 655.05 : x
2. Step 2: Convert to fraction form
   2,116.17/3,173.88 = 655.05/x
3. Step 3: Cross multiply
   2,116.17x = 3,173.88 × 655.05
4. Step 4: Simplify right side
   2,116.17x = 2,079,050.09
5. Step 5: Solve for x
   x = 2,079,050.09/2,116.17
6. Step 6: Final answer
   x = 982.46