Finding the Fourth Proportional to 3,429.57, 5,143.95 and 896.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.57 : 5,143.95 = 896.50 : x
2. Step 2: Convert to fraction form
   3,429.57/5,143.95 = 896.50/x
3. Step 3: Cross multiply
   3,429.57x = 5,143.95 × 896.50
4. Step 4: Simplify right side
   3,429.57x = 4,611,525.46
5. Step 5: Solve for x
   x = 4,611,525.46/3,429.57
6. Step 6: Final answer
   x = 1,344.64