Finding the Fourth Proportional to 1,059.26, 1,462.32 and 661.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.26 : 1,462.32 = 661.05 : x
2. Step 2: Convert to fraction form
   1,059.26/1,462.32 = 661.05/x
3. Step 3: Cross multiply
   1,059.26x = 1,462.32 × 661.05
4. Step 4: Simplify right side
   1,059.26x = 966,666.64
5. Step 5: Solve for x
   x = 966,666.64/1,059.26
6. Step 6: Final answer
   x = 912.59