Finding the Fourth Proportional to 2,460.18, 3,689.46 and 900.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.18 : 3,689.46 = 900.12 : x
2. Step 2: Convert to fraction form
   2,460.18/3,689.46 = 900.12/x
3. Step 3: Cross multiply
   2,460.18x = 3,689.46 × 900.12
4. Step 4: Simplify right side
   2,460.18x = 3,320,956.74
5. Step 5: Solve for x
   x = 3,320,956.74/2,460.18
6. Step 6: Final answer
   x = 1,349.88