Finding the Fourth Proportional to 1,050.52, 1,447.94 and 718.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.52 : 1,447.94 = 718.37 : x
2. Step 2: Convert to fraction form
   1,050.52/1,447.94 = 718.37/x
3. Step 3: Cross multiply
   1,050.52x = 1,447.94 × 718.37
4. Step 4: Simplify right side
   1,050.52x = 1,040,156.66
5. Step 5: Solve for x
   x = 1,040,156.66/1,050.52
6. Step 6: Final answer
   x = 990.14