Finding the Fourth Proportional to 3,810.76, 5,261.34 and 3,411.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810.76 : 5,261.34 = 3,411.16 : x
2. Step 2: Convert to fraction form
   3,810.76/5,261.34 = 3,411.16/x
3. Step 3: Cross multiply
   3,810.76x = 5,261.34 × 3,411.16
4. Step 4: Simplify right side
   3,810.76x = 17,947,272.55
5. Step 5: Solve for x
   x = 17,947,272.55/3,810.76
6. Step 6: Final answer
   x = 4,709.63