Finding the Fourth Proportional to 1,059.92, 1,462.72 and 617.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.92 : 1,462.72 = 617.84 : x
2. Step 2: Convert to fraction form
   1,059.92/1,462.72 = 617.84/x
3. Step 3: Cross multiply
   1,059.92x = 1,462.72 × 617.84
4. Step 4: Simplify right side
   1,059.92x = 903,726.92
5. Step 5: Solve for x
   x = 903,726.92/1,059.92
6. Step 6: Final answer
   x = 852.64