Finding the Fourth Proportional to 1,061.72, 1,600.54 and 971.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.72 : 1,600.54 = 971.48 : x
2. Step 2: Convert to fraction form
   1,061.72/1,600.54 = 971.48/x
3. Step 3: Cross multiply
   1,061.72x = 1,600.54 × 971.48
4. Step 4: Simplify right side
   1,061.72x = 1,554,892.60
5. Step 5: Solve for x
   x = 1,554,892.60/1,061.72
6. Step 6: Final answer
   x = 1,464.50