Finding the Fourth Proportional to 1,801.98, 2,685.05 and 1,605.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.98 : 2,685.05 = 1,605.47 : x
2. Step 2: Convert to fraction form
   1,801.98/2,685.05 = 1,605.47/x
3. Step 3: Cross multiply
   1,801.98x = 2,685.05 × 1,605.47
4. Step 4: Simplify right side
   1,801.98x = 4,310,770.89
5. Step 5: Solve for x
   x = 4,310,770.89/1,801.98
6. Step 6: Final answer
   x = 2,392.24