Finding the Fourth Proportional to 2,082.68, 3,110.50 and 1,887.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,082.68 : 3,110.50 = 1,887.30 : x
2. Step 2: Convert to fraction form
   2,082.68/3,110.50 = 1,887.30/x
3. Step 3: Cross multiply
   2,082.68x = 3,110.50 × 1,887.30
4. Step 4: Simplify right side
   2,082.68x = 5,870,446.65
5. Step 5: Solve for x
   x = 5,870,446.65/2,082.68
6. Step 6: Final answer
   x = 2,818.70