Finding the Fourth Proportional to 2,086.32, 2,876.04 and 1,643.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.32 : 2,876.04 = 1,643.34 : x
2. Step 2: Convert to fraction form
   2,086.32/2,876.04 = 1,643.34/x
3. Step 3: Cross multiply
   2,086.32x = 2,876.04 × 1,643.34
4. Step 4: Simplify right side
   2,086.32x = 4,726,311.57
5. Step 5: Solve for x
   x = 4,726,311.57/2,086.32
6. Step 6: Final answer
   x = 2,265.38