Finding the Fourth Proportional to 3,411.55, 5,117.30 and 946.35

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.55 : 5,117.30 = 946.35 : x
2. Step 2: Convert to fraction form
   3,411.55/5,117.30 = 946.35/x
3. Step 3: Cross multiply
   3,411.55x = 5,117.30 × 946.35
4. Step 4: Simplify right side
   3,411.55x = 4,842,756.86
5. Step 5: Solve for x
   x = 4,842,756.86/3,411.55
6. Step 6: Final answer
   x = 1,419.52