Finding the Fourth Proportional to 1,059.50, 1,462.83 and 661.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.50 : 1,462.83 = 661.32 : x
2. Step 2: Convert to fraction form
   1,059.50/1,462.83 = 661.32/x
3. Step 3: Cross multiply
   1,059.50x = 1,462.83 × 661.32
4. Step 4: Simplify right side
   1,059.50x = 967,398.74
5. Step 5: Solve for x
   x = 967,398.74/1,059.50
6. Step 6: Final answer
   x = 913.07