Finding the Fourth Proportional to 2,076.42, 3,113.25 and 843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.42 : 3,113.25 = 843.50 : x
2. Step 2: Convert to fraction form
   2,076.42/3,113.25 = 843.50/x
3. Step 3: Cross multiply
   2,076.42x = 3,113.25 × 843.50
4. Step 4: Simplify right side
   2,076.42x = 2,626,010.81
5. Step 5: Solve for x
   x = 2,626,010.81/2,076.42
6. Step 6: Final answer
   x = 1,264.68