Finding the Fourth Proportional to 1,061.52, 1,464.53 and 619.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.52 : 1,464.53 = 619.33 : x
2. Step 2: Convert to fraction form
   1,061.52/1,464.53 = 619.33/x
3. Step 3: Cross multiply
   1,061.52x = 1,464.53 × 619.33
4. Step 4: Simplify right side
   1,061.52x = 907,020.61
5. Step 5: Solve for x
   x = 907,020.61/1,061.52
6. Step 6: Final answer
   x = 854.45