Finding the Fourth Proportional to 1,855.59, 2,560.68 and 1,016.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.59 : 2,560.68 = 1,016.30 : x
2. Step 2: Convert to fraction form
   1,855.59/2,560.68 = 1,016.30/x
3. Step 3: Cross multiply
   1,855.59x = 2,560.68 × 1,016.30
4. Step 4: Simplify right side
   1,855.59x = 2,602,406.28
5. Step 5: Solve for x
   x = 2,602,406.28/1,855.59
6. Step 6: Final answer
   x = 1,402.47