Finding the Fourth Proportional to 1,061.49, 1,464.71 and 619.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.49 : 1,464.71 = 619.44 : x
2. Step 2: Convert to fraction form
   1,061.49/1,464.71 = 619.44/x
3. Step 3: Cross multiply
   1,061.49x = 1,464.71 × 619.44
4. Step 4: Simplify right side
   1,061.49x = 907,299.96
5. Step 5: Solve for x
   x = 907,299.96/1,061.49
6. Step 6: Final answer
   x = 854.74