Finding the Fourth Proportional to 2,529.12, 3,792.83 and 885.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,529.12 : 3,792.83 = 885.63 : x
2. Step 2: Convert to fraction form
   2,529.12/3,792.83 = 885.63/x
3. Step 3: Cross multiply
   2,529.12x = 3,792.83 × 885.63
4. Step 4: Simplify right side
   2,529.12x = 3,359,039.60
5. Step 5: Solve for x
   x = 3,359,039.60/2,529.12
6. Step 6: Final answer
   x = 1,328.15