Finding the Fourth Proportional to 2,612.83, 3,919.79 and 881.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612.83 : 3,919.79 = 881.59 : x
2. Step 2: Convert to fraction form
   2,612.83/3,919.79 = 881.59/x
3. Step 3: Cross multiply
   2,612.83x = 3,919.79 × 881.59
4. Step 4: Simplify right side
   2,612.83x = 3,455,647.67
5. Step 5: Solve for x
   x = 3,455,647.67/2,612.83
6. Step 6: Final answer
   x = 1,322.57