Finding the Fourth Proportional to 1,610.52, 2,410.56 and 878.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,610.52 : 2,410.56 = 878.28 : x
2. Step 2: Convert to fraction form
   1,610.52/2,410.56 = 878.28/x
3. Step 3: Cross multiply
   1,610.52x = 2,410.56 × 878.28
4. Step 4: Simplify right side
   1,610.52x = 2,117,146.64
5. Step 5: Solve for x
   x = 2,117,146.64/1,610.52
6. Step 6: Final answer
   x = 1,314.57