Finding the Fourth Proportional to 2,615.12, 3,923.06 and 883.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.12 : 3,923.06 = 883.34 : x
2. Step 2: Convert to fraction form
   2,615.12/3,923.06 = 883.34/x
3. Step 3: Cross multiply
   2,615.12x = 3,923.06 × 883.34
4. Step 4: Simplify right side
   2,615.12x = 3,465,395.82
5. Step 5: Solve for x
   x = 3,465,395.82/2,615.12
6. Step 6: Final answer
   x = 1,325.14