Finding the Fourth Proportional to 2,345.77, 3,519.46 and 885.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.77 : 3,519.46 = 885.34 : x
2. Step 2: Convert to fraction form
   2,345.77/3,519.46 = 885.34/x
3. Step 3: Cross multiply
   2,345.77x = 3,519.46 × 885.34
4. Step 4: Simplify right side
   2,345.77x = 3,115,918.72
5. Step 5: Solve for x
   x = 3,115,918.72/2,345.77
6. Step 6: Final answer
   x = 1,328.31