Finding the Fourth Proportional to 1,059.55, 1,462.43 and 617.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.55 : 1,462.43 = 617.51 : x
2. Step 2: Convert to fraction form
   1,059.55/1,462.43 = 617.51/x
3. Step 3: Cross multiply
   1,059.55x = 1,462.43 × 617.51
4. Step 4: Simplify right side
   1,059.55x = 903,065.15
5. Step 5: Solve for x
   x = 903,065.15/1,059.55
6. Step 6: Final answer
   x = 852.31