Finding the Fourth Proportional to 1,786.33, 2,679.59 and 616.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.33 : 2,679.59 = 616.39 : x
2. Step 2: Convert to fraction form
   1,786.33/2,679.59 = 616.39/x
3. Step 3: Cross multiply
   1,786.33x = 2,679.59 × 616.39
4. Step 4: Simplify right side
   1,786.33x = 1,651,667.32
5. Step 5: Solve for x
   x = 1,651,667.32/1,786.33
6. Step 6: Final answer
   x = 924.62