Finding the Fourth Proportional to 2,561.63, 3,841.22 and 1,521.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.63 : 3,841.22 = 1,521.77 : x
2. Step 2: Convert to fraction form
   2,561.63/3,841.22 = 1,521.77/x
3. Step 3: Cross multiply
   2,561.63x = 3,841.22 × 1,521.77
4. Step 4: Simplify right side
   2,561.63x = 5,845,426.54
5. Step 5: Solve for x
   x = 5,845,426.54/2,561.63
6. Step 6: Final answer
   x = 2,281.92