Finding the Fourth Proportional to 1,051.74, 1,450.71 and 802.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.74 : 1,450.71 = 802.89 : x
2. Step 2: Convert to fraction form
   1,051.74/1,450.71 = 802.89/x
3. Step 3: Cross multiply
   1,051.74x = 1,450.71 × 802.89
4. Step 4: Simplify right side
   1,051.74x = 1,164,760.55
5. Step 5: Solve for x
   x = 1,164,760.55/1,051.74
6. Step 6: Final answer
   x = 1,107.46