Finding the Fourth Proportional to 2,457.86, 3,686.72 and 996.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,457.86 : 3,686.72 = 996.96 : x
2. Step 2: Convert to fraction form
   2,457.86/3,686.72 = 996.96/x
3. Step 3: Cross multiply
   2,457.86x = 3,686.72 × 996.96
4. Step 4: Simplify right side
   2,457.86x = 3,675,507.39
5. Step 5: Solve for x
   x = 3,675,507.39/2,457.86
6. Step 6: Final answer
   x = 1,495.41