Finding the Fourth Proportional to 2,116.67, 3,173.40 and 1,655.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.67 : 3,173.40 = 1,655.42 : x
2. Step 2: Convert to fraction form
   2,116.67/3,173.40 = 1,655.42/x
3. Step 3: Cross multiply
   2,116.67x = 3,173.40 × 1,655.42
4. Step 4: Simplify right side
   2,116.67x = 5,253,293.96
5. Step 5: Solve for x
   x = 5,253,293.96/2,116.67
6. Step 6: Final answer
   x = 2,481.87