Finding the Fourth Proportional to 2,823.34, 3,895.82 and 1,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,823.34 : 3,895.82 = 1,643.50 : x
2. Step 2: Convert to fraction form
   2,823.34/3,895.82 = 1,643.50/x
3. Step 3: Cross multiply
   2,823.34x = 3,895.82 × 1,643.50
4. Step 4: Simplify right side
   2,823.34x = 6,402,780.17
5. Step 5: Solve for x
   x = 6,402,780.17/2,823.34
6. Step 6: Final answer
   x = 2,267.80