Finding the Fourth Proportional to 1,761.59, 2,431.02 and 1,015.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.59 : 2,431.02 = 1,015.42 : x
2. Step 2: Convert to fraction form
   1,761.59/2,431.02 = 1,015.42/x
3. Step 3: Cross multiply
   1,761.59x = 2,431.02 × 1,015.42
4. Step 4: Simplify right side
   1,761.59x = 2,468,506.33
5. Step 5: Solve for x
   x = 2,468,506.33/1,761.59
6. Step 6: Final answer
   x = 1,401.29