Finding the Fourth Proportional to 1,066.48, 1,471.31 and 652.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.48 : 1,471.31 = 652.72 : x
2. Step 2: Convert to fraction form
   1,066.48/1,471.31 = 652.72/x
3. Step 3: Cross multiply
   1,066.48x = 1,471.31 × 652.72
4. Step 4: Simplify right side
   1,066.48x = 960,353.46
5. Step 5: Solve for x
   x = 960,353.46/1,066.48
6. Step 6: Final answer
   x = 900.49