Finding the Fourth Proportional to 2,105.02, 2,902.80 and 1,825.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.02 : 2,902.80 = 1,825.12 : x
2. Step 2: Convert to fraction form
   2,105.02/2,902.80 = 1,825.12/x
3. Step 3: Cross multiply
   2,105.02x = 2,902.80 × 1,825.12
4. Step 4: Simplify right side
   2,105.02x = 5,297,958.34
5. Step 5: Solve for x
   x = 5,297,958.34/2,105.02
6. Step 6: Final answer
   x = 2,516.82