Finding the Fourth Proportional to 1,051.15, 1,450.62 and 788.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.15 : 1,450.62 = 788.71 : x
2. Step 2: Convert to fraction form
   1,051.15/1,450.62 = 788.71/x
3. Step 3: Cross multiply
   1,051.15x = 1,450.62 × 788.71
4. Step 4: Simplify right side
   1,051.15x = 1,144,107.30
5. Step 5: Solve for x
   x = 1,144,107.30/1,051.15
6. Step 6: Final answer
   x = 1,088.44