Finding the Fourth Proportional to 2,841.32, 3,920.87 and 1,646.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,841.32 : 3,920.87 = 1,646.10 : x
2. Step 2: Convert to fraction form
   2,841.32/3,920.87 = 1,646.10/x
3. Step 3: Cross multiply
   2,841.32x = 3,920.87 × 1,646.10
4. Step 4: Simplify right side
   2,841.32x = 6,454,116.27
5. Step 5: Solve for x
   x = 6,454,116.27/2,841.32
6. Step 6: Final answer
   x = 2,271.52