Finding the Fourth Proportional to 2,096.79, 2,886.69 and 1,816.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.79 : 2,886.69 = 1,816.12 : x
2. Step 2: Convert to fraction form
   2,096.79/2,886.69 = 1,816.12/x
3. Step 3: Cross multiply
   2,096.79x = 2,886.69 × 1,816.12
4. Step 4: Simplify right side
   2,096.79x = 5,242,575.65
5. Step 5: Solve for x
   x = 5,242,575.65/2,096.79
6. Step 6: Final answer
   x = 2,500.29