Finding the Fourth Proportional to 1,601.81, 2,398.69 and 1,015.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,601.81 : 2,398.69 = 1,015.03 : x
2. Step 2: Convert to fraction form
   1,601.81/2,398.69 = 1,015.03/x
3. Step 3: Cross multiply
   1,601.81x = 2,398.69 × 1,015.03
4. Step 4: Simplify right side
   1,601.81x = 2,434,742.31
5. Step 5: Solve for x
   x = 2,434,742.31/1,601.81
6. Step 6: Final answer
   x = 1,519.99