Finding the Fourth Proportional to 2,460.07, 3,689.30 and 816.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.07 : 3,689.30 = 816.17 : x
2. Step 2: Convert to fraction form
   2,460.07/3,689.30 = 816.17/x
3. Step 3: Cross multiply
   2,460.07x = 3,689.30 × 816.17
4. Step 4: Simplify right side
   2,460.07x = 3,011,105.20
5. Step 5: Solve for x
   x = 3,011,105.20/2,460.07
6. Step 6: Final answer
   x = 1,223.99