Finding the Fourth Proportional to 2,346.38, 3,520.05 and 885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,346.38 : 3,520.05 = 885.50 : x
2. Step 2: Convert to fraction form
   2,346.38/3,520.05 = 885.50/x
3. Step 3: Cross multiply
   2,346.38x = 3,520.05 × 885.50
4. Step 4: Simplify right side
   2,346.38x = 3,117,004.28
5. Step 5: Solve for x
   x = 3,117,004.28/2,346.38
6. Step 6: Final answer
   x = 1,328.43