Finding the Fourth Proportional to 2,460.27, 3,690.69 and 999.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.27 : 3,690.69 = 999.45 : x
2. Step 2: Convert to fraction form
   2,460.27/3,690.69 = 999.45/x
3. Step 3: Cross multiply
   2,460.27x = 3,690.69 × 999.45
4. Step 4: Simplify right side
   2,460.27x = 3,688,660.12
5. Step 5: Solve for x
   x = 3,688,660.12/2,460.27
6. Step 6: Final answer
   x = 1,499.29