Finding the Fourth Proportional to 1,059.07, 1,462.71 and 722.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,059.07 : 1,462.71 = 722.39 : x
2. Step 2: Convert to fraction form
   1,059.07/1,462.71 = 722.39/x
3. Step 3: Cross multiply
   1,059.07x = 1,462.71 × 722.39
4. Step 4: Simplify right side
   1,059.07x = 1,056,643.46
5. Step 5: Solve for x
   x = 1,056,643.46/1,059.07
6. Step 6: Final answer
   x = 997.71