Finding the Fourth Proportional to 3,411.34, 5,116.17 and 945.58

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.34 : 5,116.17 = 945.58 : x
2. Step 2: Convert to fraction form
   3,411.34/5,116.17 = 945.58/x
3. Step 3: Cross multiply
   3,411.34x = 5,116.17 × 945.58
4. Step 4: Simplify right side
   3,411.34x = 4,837,748.03
5. Step 5: Solve for x
   x = 4,837,748.03/3,411.34
6. Step 6: Final answer
   x = 1,418.14