Finding the Fourth Proportional to 1,061.34, 1,464.72 and 619.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.34 : 1,464.72 = 619.26 : x
2. Step 2: Convert to fraction form
   1,061.34/1,464.72 = 619.26/x
3. Step 3: Cross multiply
   1,061.34x = 1,464.72 × 619.26
4. Step 4: Simplify right side
   1,061.34x = 907,042.51
5. Step 5: Solve for x
   x = 907,042.51/1,061.34
6. Step 6: Final answer
   x = 854.62