Finding the Fourth Proportional to 2,333.51, 3,220.25 and 1,285.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,333.51 : 3,220.25 = 1,285.58 : x
2. Step 2: Convert to fraction form
   2,333.51/3,220.25 = 1,285.58/x
3. Step 3: Cross multiply
   2,333.51x = 3,220.25 × 1,285.58
4. Step 4: Simplify right side
   2,333.51x = 4,139,866.47
5. Step 5: Solve for x
   x = 4,139,866.47/2,333.51
6. Step 6: Final answer
   x = 1,774.10