Finding the Fourth Proportional to 2,333.16, 3,219.61 and 1,285.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.16 : 3,219.61 = 1,285.23 : x
2. Step 2: Convert to fraction form
   2,333.16/3,219.61 = 1,285.23/x
3. Step 3: Cross multiply
   2,333.16x = 3,219.61 × 1,285.23
4. Step 4: Simplify right side
   2,333.16x = 4,137,939.36
5. Step 5: Solve for x
   x = 4,137,939.36/2,333.16
6. Step 6: Final answer
   x = 1,773.53