Finding the Fourth Proportional to 2,153.34, 3,229.71 and 692.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.34 : 3,229.71 = 692.30 : x
2. Step 2: Convert to fraction form
   2,153.34/3,229.71 = 692.30/x
3. Step 3: Cross multiply
   2,153.34x = 3,229.71 × 692.30
4. Step 4: Simplify right side
   2,153.34x = 2,235,933.71
5. Step 5: Solve for x
   x = 2,235,933.71/2,153.34
6. Step 6: Final answer
   x = 1,038.36