Finding the Fourth Proportional to 2,561.92, 3,837.76 and 2,042.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,561.92 : 3,837.76 = 2,042.72 : x
2. Step 2: Convert to fraction form
   2,561.92/3,837.76 = 2,042.72/x
3. Step 3: Cross multiply
   2,561.92x = 3,837.76 × 2,042.72
4. Step 4: Simplify right side
   2,561.92x = 7,839,469.11
5. Step 5: Solve for x
   x = 7,839,469.11/2,561.92
6. Step 6: Final answer
   x = 3,060.00