Finding the Fourth Proportional to 2,410.50, 3,616.11 and 871.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,410.50 : 3,616.11 = 871.86 : x
2. Step 2: Convert to fraction form
   2,410.50/3,616.11 = 871.86/x
3. Step 3: Cross multiply
   2,410.50x = 3,616.11 × 871.86
4. Step 4: Simplify right side
   2,410.50x = 3,152,741.66
5. Step 5: Solve for x
   x = 3,152,741.66/2,410.50
6. Step 6: Final answer
   x = 1,307.92