Finding the Fourth Proportional to 1,061.30, 1,464.65 and 619.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.30 : 1,464.65 = 619.18 : x
2. Step 2: Convert to fraction form
   1,061.30/1,464.65 = 619.18/x
3. Step 3: Cross multiply
   1,061.30x = 1,464.65 × 619.18
4. Step 4: Simplify right side
   1,061.30x = 906,881.99
5. Step 5: Solve for x
   x = 906,881.99/1,061.30
6. Step 6: Final answer
   x = 854.50