Finding the Fourth Proportional to 2,459.21, 3,685.63 and 997.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,459.21 : 3,685.63 = 997.57 : x
2. Step 2: Convert to fraction form
   2,459.21/3,685.63 = 997.57/x
3. Step 3: Cross multiply
   2,459.21x = 3,685.63 × 997.57
4. Step 4: Simplify right side
   2,459.21x = 3,676,650.50
5. Step 5: Solve for x
   x = 3,676,650.50/2,459.21
6. Step 6: Final answer
   x = 1,495.05