Finding the Fourth Proportional to 1,016.15, 1,520.72 and 933.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.15 : 1,520.72 = 933.07 : x
2. Step 2: Convert to fraction form
   1,016.15/1,520.72 = 933.07/x
3. Step 3: Cross multiply
   1,016.15x = 1,520.72 × 933.07
4. Step 4: Simplify right side
   1,016.15x = 1,418,941.34
5. Step 5: Solve for x
   x = 1,418,941.34/1,016.15
6. Step 6: Final answer
   x = 1,396.40