Finding the Fourth Proportional to 2,275.23, 3,139.91 and 1,676.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.23 : 3,139.91 = 1,676.23 : x
2. Step 2: Convert to fraction form
   2,275.23/3,139.91 = 1,676.23/x
3. Step 3: Cross multiply
   2,275.23x = 3,139.91 × 1,676.23
4. Step 4: Simplify right side
   2,275.23x = 5,263,211.34
5. Step 5: Solve for x
   x = 5,263,211.34/2,275.23
6. Step 6: Final answer
   x = 2,313.27