Finding the Fourth Proportional to 3,411.83, 5,117.17 and 946.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,411.83 : 5,117.17 = 946.90 : x
2. Step 2: Convert to fraction form
   3,411.83/5,117.17 = 946.90/x
3. Step 3: Cross multiply
   3,411.83x = 5,117.17 × 946.90
4. Step 4: Simplify right side
   3,411.83x = 4,845,417.95
5. Step 5: Solve for x
   x = 4,845,417.95/3,411.83
6. Step 6: Final answer
   x = 1,420.18