Finding the Fourth Proportional to 2,194.83, 3,292.55 and 810.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,194.83 : 3,292.55 = 810.10 : x
2. Step 2: Convert to fraction form
   2,194.83/3,292.55 = 810.10/x
3. Step 3: Cross multiply
   2,194.83x = 3,292.55 × 810.10
4. Step 4: Simplify right side
   2,194.83x = 2,667,297.86
5. Step 5: Solve for x
   x = 2,667,297.86/2,194.83
6. Step 6: Final answer
   x = 1,215.26