Finding the Fourth Proportional to 2,146.30, 3,218.77 and 1,106.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.30 : 3,218.77 = 1,106.17 : x
2. Step 2: Convert to fraction form
   2,146.30/3,218.77 = 1,106.17/x
3. Step 3: Cross multiply
   2,146.30x = 3,218.77 × 1,106.17
4. Step 4: Simplify right side
   2,146.30x = 3,560,506.81
5. Step 5: Solve for x
   x = 3,560,506.81/2,146.30
6. Step 6: Final answer
   x = 1,658.90