Finding the Fourth Proportional to 1,535.67, 2,300.76 and 1,015.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.67 : 2,300.76 = 1,015.02 : x
2. Step 2: Convert to fraction form
   1,535.67/2,300.76 = 1,015.02/x
3. Step 3: Cross multiply
   1,535.67x = 2,300.76 × 1,015.02
4. Step 4: Simplify right side
   1,535.67x = 2,335,317.42
5. Step 5: Solve for x
   x = 2,335,317.42/1,535.67
6. Step 6: Final answer
   x = 1,520.72