Finding the Fourth Proportional to 2,670.30, 3,981.96 and 2,457.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.30 : 3,981.96 = 2,457.54 : x
2. Step 2: Convert to fraction form
   2,670.30/3,981.96 = 2,457.54/x
3. Step 3: Cross multiply
   2,670.30x = 3,981.96 × 2,457.54
4. Step 4: Simplify right side
   2,670.30x = 9,785,825.98
5. Step 5: Solve for x
   x = 9,785,825.98/2,670.30
6. Step 6: Final answer
   x = 3,664.69