Finding the Fourth Proportional to 1,059.42, 1,462.25 and 617.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.42 : 1,462.25 = 617.39 : x
2. Step 2: Convert to fraction form
   1,059.42/1,462.25 = 617.39/x
3. Step 3: Cross multiply
   1,059.42x = 1,462.25 × 617.39
4. Step 4: Simplify right side
   1,059.42x = 902,772.76
5. Step 5: Solve for x
   x = 902,772.76/1,059.42
6. Step 6: Final answer
   x = 852.14