Finding the Fourth Proportional to 2,561.79, 3,534.71 and 1,629.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.79 : 3,534.71 = 1,629.75 : x
2. Step 2: Convert to fraction form
   2,561.79/3,534.71 = 1,629.75/x
3. Step 3: Cross multiply
   2,561.79x = 3,534.71 × 1,629.75
4. Step 4: Simplify right side
   2,561.79x = 5,760,685.47
5. Step 5: Solve for x
   x = 5,760,685.47/2,561.79
6. Step 6: Final answer
   x = 2,248.70