Finding the Fourth Proportional to 1,051.98, 1,450.92 and 772.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.98 : 1,450.92 = 772.09 : x
2. Step 2: Convert to fraction form
   1,051.98/1,450.92 = 772.09/x
3. Step 3: Cross multiply
   1,051.98x = 1,450.92 × 772.09
4. Step 4: Simplify right side
   1,051.98x = 1,120,240.82
5. Step 5: Solve for x
   x = 1,120,240.82/1,051.98
6. Step 6: Final answer
   x = 1,064.89