Finding the Fourth Proportional to 2,561.31, 3,532.28 and 1,676.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.31 : 3,532.28 = 1,676.79 : x
2. Step 2: Convert to fraction form
   2,561.31/3,532.28 = 1,676.79/x
3. Step 3: Cross multiply
   2,561.31x = 3,532.28 × 1,676.79
4. Step 4: Simplify right side
   2,561.31x = 5,922,883.40
5. Step 5: Solve for x
   x = 5,922,883.40/2,561.31
6. Step 6: Final answer
   x = 2,312.44