Finding the Fourth Proportional to 2,475.64, 3,410.52 and 1,728.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,475.64 : 3,410.52 = 1,728.28 : x
2. Step 2: Convert to fraction form
   2,475.64/3,410.52 = 1,728.28/x
3. Step 3: Cross multiply
   2,475.64x = 3,410.52 × 1,728.28
4. Step 4: Simplify right side
   2,475.64x = 5,894,333.51
5. Step 5: Solve for x
   x = 5,894,333.51/2,475.64
6. Step 6: Final answer
   x = 2,380.93