Finding the Fourth Proportional to 1,855.37, 2,560.82 and 1,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.37 : 2,560.82 = 1,109.50 : x
2. Step 2: Convert to fraction form
   1,855.37/2,560.82 = 1,109.50/x
3. Step 3: Cross multiply
   1,855.37x = 2,560.82 × 1,109.50
4. Step 4: Simplify right side
   1,855.37x = 2,841,217.84
5. Step 5: Solve for x
   x = 2,841,217.84/1,855.37
6. Step 6: Final answer
   x = 1,531.35