Finding the Fourth Proportional to 2,345.59, 3,518.37 and 885.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.59 : 3,518.37 = 885.16 : x
2. Step 2: Convert to fraction form
   2,345.59/3,518.37 = 885.16/x
3. Step 3: Cross multiply
   2,345.59x = 3,518.37 × 885.16
4. Step 4: Simplify right side
   2,345.59x = 3,114,320.39
5. Step 5: Solve for x
   x = 3,114,320.39/2,345.59
6. Step 6: Final answer
   x = 1,327.73