Finding the Fourth Proportional to 2,152.98, 3,228.46 and 692.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.98 : 3,228.46 = 692.15 : x
2. Step 2: Convert to fraction form
   2,152.98/3,228.46 = 692.15/x
3. Step 3: Cross multiply
   2,152.98x = 3,228.46 × 692.15
4. Step 4: Simplify right side
   2,152.98x = 2,234,560.72
5. Step 5: Solve for x
   x = 2,234,560.72/2,152.98
6. Step 6: Final answer
   x = 1,037.89