Finding the Fourth Proportional to 2,345.09, 3,516.22 and 1,613.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.09 : 3,516.22 = 1,613.87 : x
2. Step 2: Convert to fraction form
   2,345.09/3,516.22 = 1,613.87/x
3. Step 3: Cross multiply
   2,345.09x = 3,516.22 × 1,613.87
4. Step 4: Simplify right side
   2,345.09x = 5,674,700.36
5. Step 5: Solve for x
   x = 5,674,700.36/2,345.09
6. Step 6: Final answer
   x = 2,419.82