Finding the Fourth Proportional to 1,892.97, 2,613.06 and 1,230.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.97 : 2,613.06 = 1,230.39 : x
2. Step 2: Convert to fraction form
   1,892.97/2,613.06 = 1,230.39/x
3. Step 3: Cross multiply
   1,892.97x = 2,613.06 × 1,230.39
4. Step 4: Simplify right side
   1,892.97x = 3,215,082.89
5. Step 5: Solve for x
   x = 3,215,082.89/1,892.97
6. Step 6: Final answer
   x = 1,698.43