Finding the Fourth Proportional to 2,097.86, 3,146.76 and 516.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.86 : 3,146.76 = 516.60 : x
2. Step 2: Convert to fraction form
   2,097.86/3,146.76 = 516.60/x
3. Step 3: Cross multiply
   2,097.86x = 3,146.76 × 516.60
4. Step 4: Simplify right side
   2,097.86x = 1,625,616.22
5. Step 5: Solve for x
   x = 1,625,616.22/2,097.86
6. Step 6: Final answer
   x = 774.89