Finding the Fourth Proportional to 2,664.55, 3,997.48 and 1,345.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,664.55 : 3,997.48 = 1,345.06 : x
2. Step 2: Convert to fraction form
   2,664.55/3,997.48 = 1,345.06/x
3. Step 3: Cross multiply
   2,664.55x = 3,997.48 × 1,345.06
4. Step 4: Simplify right side
   2,664.55x = 5,376,850.45
5. Step 5: Solve for x
   x = 5,376,850.45/2,664.55
6. Step 6: Final answer
   x = 2,017.92