Finding the Fourth Proportional to 2,328.24, 3,492.96 and 684.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,328.24 : 3,492.96 = 684.72 : x
2. Step 2: Convert to fraction form
   2,328.24/3,492.96 = 684.72/x
3. Step 3: Cross multiply
   2,328.24x = 3,492.96 × 684.72
4. Step 4: Simplify right side
   2,328.24x = 2,391,699.57
5. Step 5: Solve for x
   x = 2,391,699.57/2,328.24
6. Step 6: Final answer
   x = 1,027.26