Finding the Fourth Proportional to 2,610.52, 3,914.46 and 878.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.52 : 3,914.46 = 878.52 : x
2. Step 2: Convert to fraction form
   2,610.52/3,914.46 = 878.52/x
3. Step 3: Cross multiply
   2,610.52x = 3,914.46 × 878.52
4. Step 4: Simplify right side
   2,610.52x = 3,438,931.40
5. Step 5: Solve for x
   x = 3,438,931.40/2,610.52
6. Step 6: Final answer
   x = 1,317.34