Finding the Fourth Proportional to 1,015.71, 1,401.95 and 662.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.71 : 1,401.95 = 662.52 : x
2. Step 2: Convert to fraction form
   1,015.71/1,401.95 = 662.52/x
3. Step 3: Cross multiply
   1,015.71x = 1,401.95 × 662.52
4. Step 4: Simplify right side
   1,015.71x = 928,816.60
5. Step 5: Solve for x
   x = 928,816.60/1,015.71
6. Step 6: Final answer
   x = 914.45