Finding the Fourth Proportional to 3,508.56, 5,261.94 and 1,042.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,508.56 : 5,261.94 = 1,042.71 : x
2. Step 2: Convert to fraction form
   3,508.56/5,261.94 = 1,042.71/x
3. Step 3: Cross multiply
   3,508.56x = 5,261.94 × 1,042.71
4. Step 4: Simplify right side
   3,508.56x = 5,486,677.46
5. Step 5: Solve for x
   x = 5,486,677.46/3,508.56
6. Step 6: Final answer
   x = 1,563.80