Finding the Fourth Proportional to 1,855.25, 2,560.25 and 1,015.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.25 : 2,560.25 = 1,015.96 : x
2. Step 2: Convert to fraction form
   1,855.25/2,560.25 = 1,015.96/x
3. Step 3: Cross multiply
   1,855.25x = 2,560.25 × 1,015.96
4. Step 4: Simplify right side
   1,855.25x = 2,601,111.59
5. Step 5: Solve for x
   x = 2,601,111.59/1,855.25
6. Step 6: Final answer
   x = 1,402.03