Finding the Fourth Proportional to 1,051.28, 1,450.71 and 585.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.28 : 1,450.71 = 585.50 : x
2. Step 2: Convert to fraction form
   1,051.28/1,450.71 = 585.50/x
3. Step 3: Cross multiply
   1,051.28x = 1,450.71 × 585.50
4. Step 4: Simplify right side
   1,051.28x = 849,390.71
5. Step 5: Solve for x
   x = 849,390.71/1,051.28
6. Step 6: Final answer
   x = 807.96